Chemistry Sample Questions

Chemistry Sample Questions

1. Which of the following is an example of a Schottky defect?

a. NaCl

b. ZnS

c. AgBr

d. All of the above

2. A solution of an equal volume of 0.01 M NaOH and 0.001 M HCl was prepared. What will be

the pH of this solution?

a. 7.0

b. 10.2

c. 5.7

d. 11.65

3. Which of the following is the weakest acid?

a. p-Nitrophenol

b. p-methyl phenol

c. o-nitrophenol

d. p-ethyl phenol

4. Which of the following is a non-essential amino acid?

a. Leu

b. Lys

c. Tyr

d. Thr

5. Choose the odd one out w.r.t. molecular forces

a. Thermosetting polymers

b. Thermoplastic polymers

c. Fibres

d. Condensation polymers

6. Which of the following is used as an antiseptic for the eyes?

a. Boric acid

b. Bithionol

c. Formalin

d. None of above

7. The reagent used in Balz-Shieman reaction is

a. HBF4

b. Cu/HCl

c. NaNO2/HCl

d. CuCl2/HCl

8. Temporary hardening of water can be removed by:

a. Calgon method

b. Synthetic method

c. Clark method

d. a and c

9. which of the following is the correct order of decreasing density

a. Li > Na > K >Rb > Cs

b. Cs > K > Rb > Na > Li

c. Cs > Rb > Na > K > Li

d. Li > Rb > K > Cs >Na

10. Haematite can be written as

a. Fe2O3

b. Fe3O4

c. FeO.Cr2O3

d. Fe(OH)3

11. Which of the following is being used to produce an inert atmosphere

a. Ar

b. He

c. Ne

d. Kr

12. What are the dispersion phase and dispersion medium in an insecticide syrup?

a. Solid and liquid respectively

b. Liquid and liquid respectively

c. Liquid and gas respectively

d. Gas and liquid respectively

13. Mohr salt is written as:

a. FeSO4. (NH4)2SO4.6H2O

b. K2SO4. (NH4)2SO4.6H2O

c. K2SO4. (Al2SO4).24H2O

d. None of Above

14. Choose the correct order of electron gain enthalpy:

a. Ne > Ar = Kr > Xe > Rn > He

b. He > Ne > Ar > Kr > Xe > Rn

c. He > Ar > Kr > Rn > Xe > Ne

d. Rn > Xe > Kr > Ar > Ne > He

15. Which of the following is least acidic in nature

a. BeO

b. MgO

c. CaO

d. BaO

16. Monomer of glycogen is:

a. D- glucose

b. L- glucose

c. D- galactose

d. L-galactose

17. Which one of the following forms the strongest H- bond?

a. N-H

b. O-H

c. F-H

d. All of the above forms equally strong bonds

18. Which of the following is independent on temperature:

a. Molality

b. Mole fraction

c. Weight percentage

d. All of the above

19. The electrode potential of metal A, B, and C are -1.0, +0.60, and -2.0, the correct order of

reducing power will be:

a. A > B > C

b. C > A > B

c. B > A > C

d. C > B > A

20. Which of the following molecule will have maximum bond order?

a. O2

b. O2-

c. O2+

d. O22-

21. Which of the following are isoelectronic:

a. N2 and O22+

b. N2 and O2-

c. O2 and F2+

d. F2 and O2-

22. What will be the pH of 0.01 M NaOH

a. 12

b. 11

c. 10

d. 13

23. Which of the following is not a colligative property:

a. Relative lowering of vapor pressure

b. Osmosis

c. Depression in freezing point

d. All of the above are colligative properties

24. The linkage present in cellulose:

a. α-1 4 glycosidic linkage

b. β- 1 4 glycosidic Linkage

c. α-1 6 glycosidic linkage

d. None of the above

25. Electrode potential depends on

a. Concentration of solution

b. Nature of metals

c. Temperature

d. All of the above

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