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Chemistry Practice MCQs (Answers) for Class 12
1. (d) 0.02
2. (d) 0.1 M Aluminium nitrate
3. (c) Boiling Point Increases and Freezing Point Decreases
4. (a) Urea
5. (d) Potassium sulphate
6. (c) Concentration of solute particles
7. (a) Osmotic pressure
8. (b) Flow of solvent particles, from solvent to solution through SPM
9. (a) Calcium chloride
10. (c) There is no flow of water
11. (a) Increasing temperature of the solution
12. (a) The enthalpy of mixing is zero
13. (a) Both A and R are true and R is the correct explanation of A
14. (c) A is true but R is false
15. (a) Both A and R are true and R is the correct explanation of A
16. Both assertion and reason are the wrong statements
17. (a) Both A and R are true and R is the correct explanation of A
18. (b) Both A and R are true but R is NOT the correct explanation of A
19. (a) Both A and R are true and R is the correct explanation of A
20. (i). (c) Boil above 100°C and freeze below 0°C
ii). (a) Dependent only on the concentration of the solute and independent of the solvents and solute’s identity.
iii). (d) All have the same freezing point.
iv). (d) All of The Above
21. (b) (iii) > (ii) > (i)
22. (d)
23. (c) (iii) < (i) < (ii)
24. (b) A substitution reaction
25. (d) (CH3)3C—I
26. (a) Cl2/UVlight
27. (b) (i), (ii), (iii)
28. (A)
29. (A)
30. (c)
31. (i) (d) (CH3)3C-I
(ii) (c) Inversion of configuration
(iii) (d) 1-Bromo-2-methylbutane
(iv) (a) SN1 mechanism
32. (c) ZnO + benzene
33. (a) NaHCO3 solution
Chemistry Practice MCQs (Answers) for Class 12
CHEMISTRY PRACTICE MCQS FOR CLASS 12 – CHAPTER 2, 10
