1. Which of following cannot be classified as Arrhenious acid

a. HNO3
b. H2CO3
c. CO2
d. H2SO4

c. CO2

2. NH3 cannot be classified as a base by

a. Lewis theory
b. Bronsted Lowry atheory
c. Arrhenious theory
d. all of these

c. Arrhenious theory

3. Which of following is a Lewis base

a. BF3
b. HCl
c. AlCl3
d. F–

d. F–

4. Choose Lewis acid

a. CN-
b. NH3
c. H2O
d. H+

d. H+

5. A drain cleaner solution contains 1*10-8M OH- concentration. This solution is

a. acidic
b. basic
c. neutral
d. cannot be predicted

a. acidic

6. Milk of magnesia contains Mg(OH)2. It is used as in antacid.It neutralizes excess stomach acid . Which salt is formed in this reaction

a. MgSO4
b. MgCO3
c. MgCl2
d. MgO

c. MgCl2

7. Ammonia is a base because it

a. ionizes in water to give OH- ions
b. contains OH- ions
c. can accept an electron pair
d. can accept proton

d, can accept proton

8. Consider the following reaction H2O + HCl …..> H3O+ + Cl-. Ehich specie is an electron pair acceptor in this reaction?

a. H3O+
b. H2O
c. HCl
d. none

c. HCl

9. Which specie is donating es pair in following reaction NH3 + BF3 …….>[NH3-BF3]

a. H
b. B
c. N
d. BF3

c. N

10. AN aqueous solution of NaOh is used as a drain cleaner. If the conc of hydroxide ions is 1*10-5 . the conc of H+ will be

a. 1* 10-5
b. 1* 10-7
c. 1* 10-9
d. none

c. 1* 10-9