CBSE Class 11 Chemistry MCQs - Solutions

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CBSE Class 11 Chemistry MCQs - Solutions CBSE and NCERT students can refer to the attached file. All educational material on the website has been prepared by the best teachers having more than 20 years of teaching experience in various schools. The study material available on our website for all CBSE classes and subjects have been prepared by teachers from all over the country. All study material has been carefully designed keeping into mind the latest CBSE examination trends.  

Solutions

I. MCQ - Choose Appropriate Alternative

1. Molarity is the number of moles of a solute dissolved per __________. (dm3 of a solution, dm3 of solvent, Kg of solvent)

2. Molality is defined as the number of moles of solute dissolved per __________. (dm3 of solution, kg of solvent, kg of solute)

3. The solubility of a solute __________ with the increase of temperature. (increases, decreases, does not alter)

4. The loss of electron during a chemical reaction is known as __________. (Oxidation, Reduction, Neutralization)

5. The gain of electron during a chemical reaction is known as __________. (Oxidation, Reduction, Neutralization)

6. The ions, which are attracted towards the anode, are known as __________. (Anins, Cations, Positron).

7. The pH of a neutral solution is __________. (1.7, 7, 14)

8. A current of one ampere flowing for one minute is equal to __________. (One coulomb, 60 coulomb, one Faraday)

9. A substance, which does not allow electricity to pass through, is known as __________. (Insulator, Conductor, Electrolyte)

10. Such substances, which allow electricity to pass through them and are chemically decomposed, are called __________. (Electrolytes, Insulators, Metallic conductors)

11. __________ is an example of strong acid. (Acetic Acid, Carbonic Acid, Hydrochloric Acid)

12. __________ is an example of weak acid. (Hydrochloric Acid, Acetic Acid, Sulphuric Acid)

13. When NH4Cl is hydrolyzed, the solution will be __________. (Acidic, Basic, Neutral)

14. When Na2CO3 is hydrolyzed, the solution will be __________. (Acidic, Basic, Neutral)

15. When blue hydrated copper sulphate is heated __________. (It changes into white, it turns black, it remains blue)

16. Sulphur has the highest oxidation number in __________. (SO2, H2SO4, H2SO3)

17. The reaction between an acid and a base to form a salt and water is called __________. (Hydration, Hydrolysis, Neutralization)

18. __________ is opposite of Neutralization. (Hydration, Hydrolysis, Ionization)

19. The substance having pH value 7 is __________. (Basic, Acidic, Neutral)

20. An aqueous solution whose pH is zero is __________(Alkaline, Neutral, Strongly Acidic)

21. Solubility product of slightly soluble salt is denoted by __________. (Kc, Kp, Ksp)

22. The increase of oxidation number is known as __________. (Oxidation, Reduction, Hydrolysis)

23. The decrease of Oxidation number is known as __________. (Oxidation, Reduction, Electrolysis)

24. One molar solution of glucose contains __________ gms of glucose per dm3 of solution. (180, 100, 342)

25. The number of moles of solute present per dm3 of solution is called __________. (Molality, Molarity, Normality)

26. ‘M’ is the symbol used for representing __________.(Molality, Molarity, Normality)

27. 1 mole of H2SO4 is equal to __________.(98gms, 49gms, 180gms)

28. Buffer solution tends to __________ pH.

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