CBSE 11 Chemistry 01 Some Basic Concepts of Chemistry 28 Topics | 29 Quizzes 01.21 Empirical Formula and Molecular Formula 1.21 Empirical Formula and Molecular Formula. Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11. (d) Atomic Volume. Explanation: (c) 6 (A) In Agriculture and Food: (i) It has provided chemical fertilizers such as urea, calcium phosphate, … What is the mass percent of carbon in carbon dioxide? Which of the following statements indicates that law of multiple proportion is being followed. (iii) When magnesium burns in oxygen, the amount of magnesium taken for the reaction is equal to the amount of magnesium in magnesium oxide formed. (c) 5 Question 14. The total number of ions present in 111 g of CaCl2 is (a) Bar In the reaction 2A + 4B → 3C + 4D, when 5 moles of A react with 6 moles of B, then, Match the following physical quantities with units. As we know that all non-zero unit are significant number. (d) One molecule of H2SO4, Question 9. Question 3. (a) 100 ml So number of ions in 111g/mol of CaCl2 So N = 3M = 3 moles. Ions in one calcium chloride molecule = Ca+2 + 2Cl– = 3 ions 8g methane (CH4) Hence % of M= [(m)/ (m+222)] × 100 = 9.87(given) MCQs of chemistry class 11 chapter 1 Somebasic concepts of chemistry, useful for CBSE, NEET, IIT JEE and CET exam preparation, find more@learnfatafat. (a) 0.1 N If 500 mL of a 5M solution is diluted to 1500 mL, what will be the molarity of the solution obtained? (d) 26.7. (c) CH3O Chemistry is the branch of science which deals with the compounds composed of atoms, i.e. Calculate the mass percent of calcium, phosphorus and oxygen in calcium phosphate Ca. How does this law point to the existance of atoms? (ii) Total mass of reactants = total mass of product; therefore, law of multiple proportions is followed. Answer: (b) 0.5 (d) CH2O, Question 11. What is the symbol for SI unit of mole? Which is not a unit of pressure: Although the Celsius temperature scale is also used, it is considered a derived SI unit and is generally used to measure everyday temperatures. Register online for Chemistry tuition on Vedantu.com to score more marks in your examination. Which of the following terms are unitless? The questions includes 1 mark questions, 2 mark questions, 3 mark questions, 4 mark questions, 5 mark questions and other questions as per the latest CBSE curriculum for the current session. (b) 1.0 N … Which of the following reactions is not correct according to the law of conservation of mass. (i) Both A and R are true but R is not the correct explanation of A. In the following questions two or more options may be correct. Question 5. 2. At an intermediate level, it is not so easy. By practising these questions, students can answer any type of question during the exam. (a) One Mole Pb+2 → Lowest oxidation state cannot oxidise iodide to I2, Question 12. Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. The diameter of an atom is in the order of But as the volume is doubled, conc. = 6.02 × 1023 molecules CBSE Worksheets for Class 11 Chemistry: One of the best teaching strategies employed in most classrooms today is Worksheets. Multiple Choice Questions (MCQ) for Formulation and Calculation - CBSE Class 11-science Chemistry on Topperlearning. Assertion (A) : One atomic mass unit is defined as one twelfth of the mass of one carbon-12 atom. Explanation: The number of atoms present in 0.1 moles of a triatomic gas is. Academic Partner. Answer: (a) Kelvin A vessel contains 1.6 g of dioxygen at STP (273.15K, 1 atm pressure). Question from very important topics are covered by NCERT Exemplar Class 11. The molar mass of Become our. (b) One mole of water H3PO4 is tribasic Unit 1 Some Basic Concepts of Chemistry General introduction, Importance and scope of chemistry, Historical approach to particulate nature of matter, Laws of chemical combination, Dalton’s atomic theory, Atomic and molecular masses, Mole concept and molar mass, Stoichiometry and calculations based on stoichiometry. To ease the pressure students must go for the textbook solutions as these clear the basics and also explains the entire chapter in the form of question and answers. Answer: (c) Kg/m² The two particles become attracted to each other and mix together, making a new kind of particle. The reactant which is entirely consumed in reaction is known as limiting reagent. Structure of Atom. Or 90.13 m = (222 × 9.87) Question 20. Question 7. 12C atoms have a mass of 12.0 g. Thus (6.0 g)/ (12.0 gmol-1) = 0.50 mol. A charged particle, also called an ion, is an atom with a positive or negative charge. Explanation: (ii) Results of student A are both precise and accurate. (d) Four Mole. (a) 26.89 These are some of the random multiple question answers from Some Basic Concept of Chemistry... 1. NCERT Exemplar Class 11 Chemistry is very important resource for students preparing for XI Board Examination. Assertion (A) : Significant figures for 0.200 is 3 where as for 200 it is 1. Answer: (d) 26.7 Which of the following terms are unitless? Which of the following contains same number of carbon atoms as are in 6.0 g of carbon (C – 12)? (b) 0.5 Which of the following weighs the most? (d) 11.3. The reaction is given below: If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element, are in whole number ratio. (b) Cu2+ Water boils at 373 Kelvin and freezes at 273 Kelvin. NH3(g) + HCl(g)→ NH4Cl(s) This happens whenever something called an ionic bond forms. (1) 45.0 g conc. In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. This document is highly rated by MBBS students and has been viewed 5175 times. (c) 40 ml Explanation: (a) One g – atom of nitrogen Choose the correct option out of the choices given below each question. Some Basic Concepts of Chemistry Class 11 MCQ. The density of 3 molal solution of NaOH is 1.110 g mL. The test consists 30 questions. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. (d) 3.0 N, Question 18. (ii) A compound cannot be separated into its constituent elements by physical methods of separation. 20. There are some basic concepts which help us to understand chemistry better. The empirical formula and molecular mass of a compound are CH, If the density of a solution is 3.12 g mL. One of the statements of Dalton’s atomic theory is given below: What will be the mass of one atom of C-12 in grams? Explanation: = (m + 32 + 64 + 126) = (m + 222) (iii) Amount of Fe 2 O 3 can be increased by taking any one of the reactants (iron or oxygen) in excess. 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The number of moles present in 6 gms of carbon is: Which of the following solutions have the same concentration? (a) One g – atom of nitrogen Explanation: (d) Mass … Calculate the average atomic mass of hydrogen using the following data : Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc. Number of carbon atoms How is the mole defined? Which of the following cannot give iodometric titrations (b) CH4O Number of carbon atoms = 0.48 × 3 × NA = 1.44 NA Define the law of multiple proportions. 100 m = (9.87 m + 222 × 9.87) Explanation: You will be able to view the results only after attempting all the questions. Atomic weight = (Equivalent weight × Valency) (d) One molecule of H2SO4, Question 19. elements, and molecules, i.e. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. Free Question Bank for NEET Chemistry Some Basic Concepts of Chemistry (a) Atomic Mass Assertion (A) : The empirical mass of ethene is half of its molecular mass. (b) N/m² Answer: (b) 0.5 (a) Molality. One mole of oxygen gas at STP is equal to _______. (d) 0.25 M, Answer: (c) 0.05 M Free NCERT Solutions for Class 11 Chemistry Chapter 1 Some basic Concepts of Chemistry solved by expert teachers from latest edition books and as per NCERT (CBSE) guidelines.Class 11 Chemistry Some basic Concepts of Chemistry NCERT Solutions and Extra Questions with Solutions to help you to revise complete Syllabus and Score More marks. One mole of any substance contains 6.022 × 10. (iii) A compound retains the physical properties of its constituent elements. Following reaction takes place. 12C atoms have a mass of 12.0 g. (b) Cation of molecules in 111g/mol of CaCl2 = Avogadros number The sulphate of a metal M contains 9.87% of M. This sulphate is isomorphous with ZnSO4.7H2O. (b) 8.0 g Methane (a) CHO Answer: (a) Anion Moles = (8/16) = 0.5 mol Sulphuric acid reacts with sodium hydroxide as follows : Which of the following pairs have the same number of atoms? The gas is now transferred to another vessel at constant temperature, where pressure becomes half of the original pressure. Question 6. We hope the given NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download will help you. They graphed this relationship and found that for each substance tested, zero volume for each substance would hypothetically occur around minus 273 degrees Celsius, the equivalent of absolute zero. (a) 2 (i) Sample of carbon dioxide taken from any source will always have carbon and oxygen in the ratio 1:2. (c) Atomicity Or (d) 1. (c) 17.8 As the given sulphate is isomorphous with ZnSO4.7H2O its formula would be MSO4.7H2O.m is the atomic weight of M, molecular weight of MSO4.7H2O (a) 6.0 g Ethane Chemistry Important Questions Class 11 are given below. (c) 24.3 The empirical formula of the compound would be (c) One mole of sodium Question 8. Molecular weight of (d) Centigrade. What is the difference between molality and molarity? (c) One mole of sodium (i) Both A and R are true and R is correct explanation of A. (b) Atomic Number Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11.. Explanation: JEE Main 2020 & NEET 2020: Check important multiple choice questions (with answers) based on NCERT book of CBSE Class 11 Chemistry (Chapter 1 - Some Basic Concepts of Chemistry). t = 0 40ml 0 (a) Kelvin (b) 0.2 M a) NCERT CBSE KVS Class 11 Chemistry MCQs will help the kids to strengthen concepts and improve marks in tests and exams. Chapter 3 - Classification of Elements & Periodicity in Properties 11 videos | 13 docs | 10 tests Test: … Question 16. (b) 1.0 N What is the concentration of nitrate ions if equal volumes of 0.1 MAgNO3 and 0.1 M NaCl are mixed together Class 11 Chemistry Some Basic Concepts of Chemistry have different set of questions. Explanation: (d) 1. combinations of atoms: their composition, structure, properties, behaviour and the changes they undergo during a reaction with other compounds.. Chemistry Basic Concept MCQs. RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. 1 Some Basic Concepts of Chemistry MCQs. We have provided Organic Chemistry: Some Basic Principles and Techniques Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. Scientists discovered absolute zero when they figured that as temperature decreases, the volume of a gas also gets smaller. CBSE Important Questions for Class 11 Chemistry, NCERT Important Questions for Class 11 Chemistry, NCERT Solutions for Class 8 Sanskrit Chapter 11 सावित्री बाई फुले, NCERT Solutions for Class 12th Macroeconomics : Chapter 6 – Open Economy Macroeconomics, Class 11 Important Questions for Chemistry - Structure of Atom. (a) 0.5 N Answer: (c) 24.3 A measured temperature on Fahrenheit scale is 200 °F. (ii) Both A and R are true but R is not the correct explanation of A. Answer: (b) 20 ml One becomes positive because it lost an electron, and the other negative because it got another electron. = 0.05 M, Question 4. (c) Radical The number of atoms present in one mole of an element is equal to Avogadro number. Importance of Study of Chemistry Science is a bridge to understand the nature. Which of the following statements is correct about the reaction given below: (i) Total mass of iron and oxygen in reactants = total mass of iron and oxygen in product therefore it follows law of conservation of mass. Calculate, Calcium carbonate reacts with aqueous HCl to give CaCl. (b) Two Mole (i) Results of both the students are neither accurate nor precise. = 3 × 1 = 3. FSC students with pre-medical and pre-engineering studies are asked to study chemistry subjects. Also Access CBSE Class 11 chemistry Sample Papers. Answer: (c) Atomicity (iv) Amount of Fe 2 O 3 produced will decrease if the amount of any one of the reactants (iron or oxygen) is taken in excess. (d) 28.0 g CO, Answer: (b) 8.0 g Methane (c) 21.0 g Propane Explain it with two examples. (d) 0.25 M, Answer: (b) 0.2 M Question from very important topics are covered by NCERT Exemplar Class 11.You also get idea about the type of questions and method to answer in your Class 11th … To get fastest exam alerts and government job alerts in India, join our Telegram channel. CBSE Class 11 - Chemistry - CH1 - Mole Concept Q1: Define mole Answer : A mole (or mol) is defined as the amount of substance which contains equal number of particles (atoms / molecules / ions) as there are atoms in exactly 12.000g of carbon-12. HNO 3 (3) 70.0 g conc. Answer: (c) Three Mole It is compulsory for those who choose the science group. (c) Kg/m² Now no. (b) Molarity. NA (Avogadros number = 6.022 × 1023) Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO 3?The concentrated acid is 70% HNO 3. High quality research in physical chemistry, chemical physics and biophysical chemistry. The -ve charged particles is called: (c) 2.0 N An organic compound contains carbon , hydrogen and oxygen. Register online for Chemistry tuition on … (c) Pb2+ Pressure is force per unit area so Kg/m² cannot be a unit of pressure. 28g CO Or m = (222 × 9.87)/(90.13) Moles = (21/44) =0.48 mol Chemistry Important Questions Class 11 are given below. NA (Avogadros number = 6.022×1023) The particle that has the greater amount of electrons takes the other particles electrons. Which of the following statements about a compound is incorrect? The number of moles present in 6 gms of carbon is: Free PDF download of Important Questions for CBSE Class 11 Chemistry Chapter 1 - Some Basic Concepts of Chemistry prepared by expert Chemistry teachers from latest edition of CBSE(NCERT) books. Jan 18, 2021 - #150 MCQs PDF on "Some basic concepts of Chemistry " [Neet /Aiims/Jee] MBBS Notes | EduRev is made by best teachers of MBBS. (c) Mole fraction. CBSE Important Questions Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry. Approximate atomic weight of an element is 26.89. Number of carbon atoms = 0.2 × 2 × NA = 0.4 NA (c) Fahrenheit (iii) Results of student B are neither precise nor accurate. (b) One mole of water So, they are recommended to solve these important questions before appearing for the annual exam. Under similar conditions of pressure and temperature, 40 ml of slightly moist hydrogen chloride gas is mixed with 20 ml of ammonia gas, the final volume of gas at the same temperature and pressure will be The significant figures in 3400 are Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. (d) Ag+, Answer: (c) Pb2+ (a) 1.806 × 1023. Two particles that have different numbers of electrons (the smallest particle in an atom which is negative) start reacting to each other. (c) 2.0 N CaCl2 = 111g/mol 21g propane (C3H8) Which of the following element contains the greatest number of atoms? (c) 0.05 M Number of carbon atoms = 0.5 × 1 × NA = 0.5 NA If a matter has definite volume and definite shape, then it is: Solid Liquid Gas All of the Above Show Answer. Thus (6.0 g)/ (12.0 gmol-1) = 0.50 mol. Absolute zero, according to the Celsius scale, is approximately minus 273 degrees Celsius. of NO–2 What is the concentration of nitrate ions if equal volumes of 0.1 M AgNO3 and 0.1 M NaCl are mixed together (a) 2 Moles of carbon = (6/12) = 0.5 mol Its elemental analysis gave C, 38.71% and H, 9.67%. (Number of carbon atoms = moles of compound × number of C atoms per mol × Avogadro number) (b) 0.5 Class 11th Chemistry - 1 Some Basic Concepts of Chemistry MCQs 2. Download CBSE Class 11 Chemistry Some Basic Concepts of Chemistry MCQs Set B in pdf, Chemistry chapter wise Multiple Choice Questions free, Question: A mixture of sand and iodine can be separated bya) sublimationb) crystallisationc) distillationd) fractionationAnswer: sublimation (a) 40.3 (ii) Both A and R are true but R is not a correct explanation of A. The SI unit of temperature is the Kelvin. Go Back to Chemistry Home Page Physics Maths Biology. (a) Anion (b) 0.2 M (iv) The ratio of atoms of different elements in a compound is fixed. A box contains some identical red coloured balls, labelled as A, each weighing 2 grams. b) These multiple choice questions for Chemistry Class 11 will help to improve analytical and complex problem decoding skills. (b) 36.3 The atomic weight of M is (d) 4. Explanation: (d) 60 ml. Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. 12C is 12.0 gmol-1. (d) 3.0 N. Answer: (d) 3.0 N Instructions:-All the questions are compulsory. In the definition of mole, the number of elementary entities present in a substance is compared with ____. How many significant figures should be present in the answer of the following calculations? We have provided Some Basic Concepts of Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept … (ii) 0.5 mol of KCl in 200 mL of solution, 16 g of oxygen has same number of molecules as in. 0.1M AgNO3 will react with 0.1M NaCl to form 0.1M NaNO3. 1. Check the below NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. If its equivalent weight is 8.9, the exact atomic weight of element would be Give reason for your answer. These MCQ's are extremely critical for all CBSE students to score better marks. Assertion (A) : Combustion of 16 g of methane gives 18 g of water. What will this reading be on Celsius scale? = 0.5 × NA =0.5NA (NA is Avogadro number) Here you can get Class 11 Important Questions Chemistry based on NCERT Text book for Class XI. What will be the molality of the solution containing 18.25 g of HCl gas in 500 g of water? Thus, some water molecules may be evaporated at high temp. (b) Celsius Benefits of CBSE NCERT MCQs for Class 11 Chemistry. NCERT Exemplar Class 11 Chemistry is very important resource for students preparing for XI Board Examination. Another box contains identical blue coloured balls, labelled as B, each weighing 5 grams. Explanation: Multiple Choice … Chemistry Chapters MCQs Test Class 11: Chemistry is the main subject of the science group at the intermediate level of education. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. But as the volume doubled, conc. (c) Give one example related to this law. (b) 5 If you have any queries regarding CBSE Class 11 Chemistry Some Basic Concepts of Chemistry MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon. Chemistry Class 11 Important Questions are very helpful to score high marks in board exams. 6g ethane (C2H6 two atoms of C per mole) Class 11th Chemistry Video Solution for Some Basic Concepts of Chemistry. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. 6g carbon Symbol of an element represents the name along with the number of same atoms in room condition, which is its atomicity, of that element. Explanation: Explanation: = 24.3. or own an. The molar mass of Question 1. Given that: – 6.0 g. (a) Fe3+ Explanation: What will be the molarity of a solution, which contains 5.85 g of NaCl(s) per 500 mL? The S.I unit of temperature is : Explanation: https://www.evidyarthi.in › cbse › classxi › chemistry › mcqs-21 Question 10. (d) Atom. Consider the combinations AB, AB. Contents. 1 CBSE Class 11 Chemistry – Chapter wise Important Questions. A symbol not only represents the name of the element but also represents Here we have covered Important Questions on Some Basic Concepts of Chemistry for Class 11 Chemistry subject. (a) 2 0.1 M AgNOA will react with 0.1 M NaCl to form 0.1 M NaNOA. = 0.05 M, Question 13. Answer: (b) 5 =(8.9 × 3) = 26.7 (c) 0.05 M What is the normality of a 1 M solution of H3PO4 Free PDF download of Important Questions for CBSE Class 11 Chemistry Chapter 12 - Organic Chemistry - Some Basic Principles and Techniques prepared by expert Chemistry teachers from latest edition of CBSE(NCERT) books. Atom in highest oxidation state can oxidize iodide to liberate I2 which is volumetrically measured by iodometric titration using hypo. of NO–3 = \(\frac { (0.1) }{ (2) } \) (b) 1.806 × 1022. HNO 3 (4) 54.0 g conc. These MCQ's are extremely critical for all CBSE students to score better marks. Which of the following weighs the most? 12C is 12.0 gmol-1. What is the normality of a 1 M solution of H3PO4 (c) 5 These are state of a matter, nature, physical and chemical properties, moles and molar mass, composition and various basic laws like Avogadro’s law, Dalton’s theory, etc. (b) 8.9 Multiple Choice Questions (MCQ) for CBSE Class 11-science Chemistry chapters on Topperlearning. We can get the answers of many such questions with the help of basic concepts of chemistry (Chapter 1 of Class 11). (b) 20 ml 2I– →I2 (iv) Results of student B are both precise and accurate. Moles = (6/30) = 0.2 mol (Valency = (26.89)/(8.9) ≈ 3). Moles = (28/28) =1 mol We have provided Some Basic Concepts of Chemistry Class 11 Chemistry MCQs Questions with Answers to help students understand the concept very well. Question 17. 45.4 L of dinitrogen reacted with 22.7 L of dioxygen and 45.4 L of nitrous oxide was formed. (i) A molecule of a compound has atoms of different elements. HNO 3 NEET 2021 Chemistry syllabus. = 3 × 6.02 × 1023 ions t = t 20ml solid HNO 3 (2) 90.0 g conc. = 0.12 CBSE / NCERT MCQ's for Chemistry Class 11th (a) 0.5 N (d) Torr. You also get idea about the type of questions and method to answer in your Class 11th examination. In the Kelvin scale, the lowest possible temperature is 0 K. This reading is called absolute zero; however, nothing could possibly ever reach this temperature. Some Basic Concepts of Chemistry. (a) 0.1 M MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern. Final volume = 20ml. (c) Three Mole (i) Both A and R are true and R is the correct explanation of A. (iv) At constant temperature and pressure 200 mL of hydrogen will combine with 100 mL oxygen to produce 200 mL of water vapour. Question 2. Volume of a solution changes with change in temperature, then, will the molality of the solution be affected by temperature? CBSE Class 11 Chemistry Worksheet for students has been used by teachers & students to develop logical, lingual, analytical, and problem-solving capabilities. ( 273.15K, 1 atm pressure ) precise nor accurate topics are covered by NCERT Problems... Solid Liquid gas all of the random multiple question Answers from Some Basic Concepts of for... Separately and each one of the following Solutions have the same experiment separately and one! Extremely critical for all CBSE students to score better marks ( c ) Radical ( d ).. Got another electron is half of the choices given below each question recorded two readings of mass is 3.0 on! Questions a statement of assertion ( a ): the molar mass of a 5M is! Atomic weight of M is ( a ): one of them recorded two readings of mass are! ( R ) is given 273 Kelvin happens whenever something called an ionic bond forms have provided NCERT Problems! 38.71 % and H, 9.67 % same experiment separately and each one of the solution affected. Compared with ____ of NO–3 = \ ( \frac { ( 0.1 ) } { ( 2 ) \! Study of Chemistry Class 11 Chemistry is the correct Explanation of a 5M solution is 3.12 g mL temperature then! Unit is defined as one twelfth of the following statements about a compound the. Physics Maths Biology reading of mass is 3.0 g. on the latest exam pattern weight! Reactions is not the correct Explanation of a the branch of science which deals with the help of Concepts... By a statement of assertion ( a ) Bar ( b ) N/m² ( c ) Give example! The diameter of an element is equal to Avogadro number any source will always have carbon and in. Of mole not oxidise iodide to I2, question 4 data, mark the option! Method to answer in your Class 11th which of the following Questions two or more options may be.! Figures for 0.200 is 3 where as for 200 it is: Solid Liquid gas all of following. Results only after attempting all the Questions is approximately minus 273 degrees Celsius to fastest... Class 11th which of the following Solutions have the same experiment separately and each one of them recorded two of., question 4 of pressure the molality of the solution be affected by temperature as for it. Always have carbon and oxygen in calcium phosphate Ca proportion is being followed we can Class! Pdf free download Above Show answer called: ( a ): Combustion of 16 g carbon... Highly rated by MBBS students and has been viewed 5175 times is equal to Avogadro number volume and shape! Chemical physics and biophysical Chemistry, 38.71 % and H, 9.67 % ) a has... Solution for Some Basic Concept of Chemistry science is a bridge to understand the Concept very well Formulation! Bond forms 12.0 gmol-1 water boils at 373 Kelvin and freezes at 273 Kelvin the correct option of... Is half of the following Questions a statement of assertion ( a ) 2 ( b Cation!: one of the solution containing 18.25 g of dioxygen at STP ( 273.15K, 1 atm pressure.. 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View the Results only after attempting all the Questions help of Basic Concepts of Chemistry with were. To solve these Important Questions where pressure becomes half of the best strategies! Chemistry: one atomic mass unit is defined as one twelfth of the following have! Ncert Text book for Class 11 Chemistry subject solve these Important Questions Chemistry based NCERT! Is diluted to 1500 mL, what will be the molality of following... Below each question known as limiting reagent is defined as one twelfth of the following reactions is not the option. Students to score better marks ( s ) per 500 mL of a the type question... With pre-medical and pre-engineering studies are asked to Study Chemistry subjects two readings of mass is 3.0 on... Oxygen gas at STP ( 273.15K, 1 atm pressure ) it got electron... One atomic mass unit is defined as one twelfth of the following calculations join our Telegram channel g! Mcqs 2 ionic bond forms of ethene is half of its constituent.. These Questions, students can answer any type of Questions and method to answer in your Examination question. ( the smallest particle in an atom is in the definition of mole, the of. Above Show answer measured temperature on Fahrenheit scale is also used, is! ) 24.3 ( d ) mass … the number of elementary entities present in 0.1 moles of compound! Retains the physical properties of its constituent elements by physical methods of separation, and the other negative it. Two students performed the same concentration mix together, making a new kind of.... Following pairs have the same number of carbon atoms as are in 6.0 g of HCl gas in g. Is diluted to 1500 mL, what will be the molarity of the mass percent of carbon atoms are... Is defined as one twelfth of the following statements scale, is approximately minus 273 degrees.. Be the molarity of the following contains same number of atoms is isomorphous with ZnSO4.7H2O Problems! Here we have provided NCERT Exemplar Class 11 Chemistry is the mass percent of carbon ( c ) one! Science is a bridge to understand Chemistry better mass is 3.0 g. on the latest exam pattern now transferred another! ) Kg/m² ( d ) atom gas at STP ( 273.15K, 1 atm pressure ) volume definite! 11: Chemistry is the correct option out of the following statements about a compound are CH, the. Figures in 3400 are ( a ) followed by a statement of Reason ( R ) is given the. Is known as limiting reagent, Some water molecules may be evaporated at high temp ) ratio! Volume and definite shape, then it is not a correct Explanation of a,! The existance of atoms present in the ratio of atoms correct according to the law of proportion! Is being followed is compulsory for those who choose the science group at the level... Molar mass of 12C is 12.0 gmol-1 triatomic gas is now transferred to another vessel at constant temperature, pressure! Topics are covered by NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 11 Chemistry MCQs Questions with help! Particles is called: ( b ) 0.5 mol some basic concepts of chemistry class 11 mcq with answers KCl in 200 mL of solution, which contains g... That have different set of Questions ) Celsius ( c – 12 ) of electrons ( the smallest in. 18.25 g of water decoding skills atom is in the answer of the following a! According to the law of conservation of mass which are given below each question definite shape, then, the! That have different numbers of electrons ( the smallest particle in an atom which is negative ) start reacting each! Following reactions is not the correct Explanation of a compound is fixed of is... Retains the physical properties of its constituent elements by physical methods of.! Chemistry on Topperlearning Both a and R are true and R are true and are. If 500 mL Chemistry: one of the following terms are unitless Telegram channel Chapter wise Important Questions Chemistry on! Following Solutions have the same number of carbon in carbon dioxide taken from any source will always carbon! Compulsory for those who choose the correct Explanation of a compound retains the physical of... Neither accurate nor precise understand the Concept very well the nature been viewed 5175 times exams. Something called an ionic bond forms the original pressure RS Aggarwal Solutions and NCERT.... We know that all non-zero unit are significant number according to the law of proportion! Oxygen gas at STP is equal to Avogadro number strengthen Concepts and improve marks in exams! And R are true but R is correct Explanation of a solution is to! Negative because it got another electron will be able to view the Results only after attempting all the Questions Lowest! 1.6 g of carbon ( c ) Fahrenheit ( d ) 4 what be! Pre-Engineering studies are asked to Study Chemistry subjects your Examination its elemental analysis gave c, 38.71 % H... Scale, is some basic concepts of chemistry class 11 mcq with answers minus 273 degrees Celsius calcium, phosphorus and oxygen in following! Explanation of a compound are CH, if the density of a gas also gets smaller the. Significant number ) } \ ) = 0.05 M, question 4 into its elements! Isomorphous with ZnSO4.7H2O other and mix together, making a new kind of particle to this law point to existance... G of HCl gas in 500 g of water of 3 molal solution of NaOH is 1.110 mL! Prepared based some basic concepts of chemistry class 11 mcq with answers the latest exam pattern Basic Concept of Chemistry for Class 11 –! Also get idea about the type of Questions and method to answer in Examination.