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Acids-Bases and pH concept

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

According to Bronsted- Lowry Theory, acids are (a)   donor.

2.

Which of the following is the conjugate base of HNO3 ?

a)

H2NO3+

b)

NO3-

c)

NO3+

d)

H2NO3-

3.

Which of the following is the conjugate acid of C2O42- ?

a)

HC2O4-

b)

HC2O4-3

c)

CO4-2

d)

CO2

4.

In the figure, Solution I represents (a)   (strong/weak) acid solution.

5.

Which of the following is true ?

a)

Weak acids completely ionize in water.

b)

Strong acids are good conductor of electricity.

c)

Weak bases are good conductor of electricity.

d)

Strong acids partially ionize in water.

6.

pH value of a solution is 6. So, pOH value of this solution is (a)  

7.

In an aqueous solution, [OH-] = 10-3 M. So, pH value of this solution is (a)  

8.

The value of Kw at 25 C is always _____________

a)

1.0 x 10-11

b)

1.0 x 10-12

c)

1.0 x 10-13

d)

1.0 x 10-14

9.

pOH value of an acidic solution is (a)   (more/less) than that of a basic solution.

10.

When a strong acid solution is added to water__________________

a)

pH of the solution increases

b)

[H+][OH-] increases

c)

[H+] in the solution increases.

d)

pOH of the solution decreases