Strong reducing behaviour of H 3 P O 2 is due to:

1. Presence of one -OH group and two p - H bonds
2. High electron gain enthalpy of phosphorus
3. High oxidation state of phosphorus
4. Presence of two -OH groups and one p - H bond

Solution

All oxy-acid of phosphorus which contain P - H bond act as reductant.

Presence of one -OH group and two P - H bonds.

Asked in: NEET 2015 (Phase 2)

Practice more p Block Elements (Group 15, 16, 17 & 18) questions on Aicharya