Question

The total number of diprotic acids among the following is

H3PO4, H2SO4 , H3PO3, H2CO3

A) 4 B) 3 C) 2 D) 1​

Answer 1

The total number of diprotic acids among the following is:

H

3

PO

4

,H

2

SO

4

,H

3

PO

3

,H

2

CO

3

,H

2

S

2

O

7

,H

3

BO

3

,H

3

PO

2

,H

2

CrO

4

,H

2

SO

3

A

5

B

6

C

7

D

8

ANSWER

(B) 6

Reason : Diprotic acids such as H

2

SO

4

,H

2

CO

3

,H

3

PO

3

,H

2

S

2

O

7

,H

2

CrO

4

,H

2

SO

3

, are those which have two acidic hydrogen atoms.