Class 11 MCQ Questions Chemistry Chapter 1 Some Basic Concepts of Chemistry with answer

Class 11 MCQ Questions Chemistry Chapter 1 : NCERT MCQ Questions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry with Answers Pdf free download. MCQ Questions for Class 11 Chemistry with Answers were prepared based on the latest exam pattern.

Class 11 MCQ Questions Chemistry Chapter 1 Some Basic Concepts of Chemistry with answer

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Class 11 MCQ Questions Chemistry Chapter 1 Some Basic Concepts of Chemistry with answer | NEET MCQ Chemistry

Q.1 Any charged particle is called:

(a) Atom
(b) Molecule
(c) Ion
(d) Mixture

(c) Ion


Q.2 The percentage of nitrogen in urea is about

(a) 46
(b) 85
(c) 18
(d) 28

(a) 46


Q.3 An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250 ml. The volume of 0.1 N NaOH required to completely neutralise 10 ml of this solution is

(a) 40 ml
(b) 20 ml
(c) 10 m
(d) 4 ml

(a) 40 ml


Q.4 One mole of calcium phosphide on reaction with excess of water gives

(a) One mole of phosphine
(b) Two moles of phosphoric acid
(c) Two moles of phosphine
(d) One mole of phosphorous pentoxide

(c) Two moles of phosphine


Q.5 Which has maximum number of atoms?

(a) 24 g of C (12)
(b) 56 g of Fe (56)
(c) 27 g of Al (27)
(d) 108 g of Ag (108)

(a) 24 g of C (12)


Q.6 Approximate atomic weight of an element is 26.89. If its equivalent weight is 8.9, the exact atomic weight of element would be

(a) 26.89
(b) 8.9
(c) 17.8
(d) 26.7

(a) 26.89


Q.7 An atom is 10 times heavier than 1/12th of mass of a carbon atom (C – 12). The mass of the atom in a.m.u. is

(a) 10
(b) 120
(c) 1.2
(d) 12

(a) 10


Q.8 81.4 g sample of ethyl alcohol contains 0.002 g of water. The amount of pure ethyl alcohol to the proper number of significant figures is

(a) 81.398 g
(b) 71.40 g
(c) 91.4 g
(d) 81 g

(a) 81.398 g


Q.9 Irrespective of the source, pure sample, of water always yields 88.89% mass of oxygen and 11.11% mass of hydrogen. This is explained by the law of

(a) Conservation of Mass
(b) Multiple Proportions
(c) Constant Composition
(d) Constant Volume

(c) Constant Composition


Q.10 Haemoglobin contains 0.33% of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron atoms (At. wt. of Fe = 56) present in one molecule of haemoglobin is

(a) 6
(b) 1
(c) 4
(d) 2

(c) 4


Q.11 The -ve charged particles is called :

(a) Anion
(b) Cation
(c) Radical
(d) Atom

(a) Anion


Q.12 Which of the following contains same number of carbon atoms as are in 6.0 g of carbon (C – 12) ?

(a) 6.0 g Ethane
(b) 8.0 g Methane
(c) 21.0 g Propane
(d) 28.0 g CO

(b) 8.0 g Methane


Q.13 The balancing of equations is based upon which of the following law?

(a) Law of Multiple Proportions
(b) Law of Conservation of Mass
(c) Boyles Law
(d) Law of Reciprocal Proportions

(b) Law of Conservation of Mass


Q.14 Irrespective of the source, pure sample, of water always yields 88.89% mass of oxygen and 11.11% mass of hydrogen. This is explained by the law of

(a) Conservation of Mass
(b) Multiple Proportions
(c) Constant Composition
(d) Constant Volume

(c) Constant Composition


Q.15 A chemical formula based on actual number of molecule is called __ formula:

(a) Structural
(b) Molecular
(c) Empirical
(d) None

(b) Molecular


Q.16 Approximate atomic weight of an element is 26.89. If its equivalent weight is 8.9, the exact atomic weight of element would be

(a) 26.89
(b) 8.9
(c) 17.8
(d) 26.7

(d) 26.7


Q.17 The number of moles present in 6 gms of carbon is:

(a) 2
(b) 0.5
(c) 5
(d) 1

(b) 0.5


Q.18 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

(a) 100 ml
(b) 20 ml
(c) 40 ml
(d) 60 ml

(b) 20 ml


Q.19 The significant figures in 3400 are

(a) 2
(b) 5
(c) 6
(d) 4

(b) 5


Q.20 A symbol not only represents the name of the element but also represents

(a) Atomic Mass
(b) Atomic Number
(c) Atomicity
(d) Atomic Volume

(c) Atomicity

MCQ Questions for Class 11 Chemistry with Answers Chapter with answer PDF

CBSE NCERT Objective MCQ Questions of Class 11 Chemistry with Answers Pdf will guide students to do a quick revision for all Chapter MCQs

  1. Class 11 MCQ Questions Chemistry Chapter 1 Some Basic Concepts of Chemistry
  2. Class 11 MCQ Questions Chemistry Chapter 2 Structure of Atom
  3. Class 11 MCQ Questions Chemistry Chapter 3 Classification of Elements and Periodicity in Properties
  4. Class 11 MCQ Questions Chemistry Chapter 4 Chemical Bonding and Molecular Structure
  5. Class 11 MCQ Questions Chemistry Chapter 5 States of Matter
  6. Class 11 MCQ Questions Chemistry Chapter 6 Thermodynamics
  7. Class 11 MCQ Questions Chemistry Chapter 7 Equilibrium
  8. Class 11 MCQ Questions Chemistry Chapter 8 Redox Reactions
  9. Class 11 MCQ Questions Chemistry Chapter 9 Hydrogen
  10. Class 11 MCQ Questions Chemistry Chapter 10 The s-Block Elements
  11. Class 11 MCQ Questions Chemistry Chapter 11 The p-Block Elements
  12. Class 11 MCQ Questions Chemistry Chapter 12 Organic Chemistry: Some Basic Principles and Techniques
  13. Class 11 MCQ Questions Chemistry Chapter 13 Hydrocarbons
  14. Class 11 MCQ Questions Chemistry Chapter 14 Environmental Chemistry

NCERT MCQ Questions for Class 11 Chemistry with Answers
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