Question

The strongest reducing agent amongst the following is:
H2PO2^-
H3PO4
P2O6^4-
P2O7^4-
​

Answer 1

Answer:

Correct option is

B

H

3

PO

4

The oxoacid of phosphorus with the highest number of P−H bond will be the strongest reducing agent.

Here H

3

PO

2

contain two P−H bond which highest among all the given oxoacids of phosphorus.

Thus H

3

PO−2 is the strongest reducing agent among the given oxoacids of phosphorus.