Question:
Strong reducing behaviour of H3PO2 is due to
(i) The low oxidation state of phosphorus
(ii) Presence of two –OH groups and one P–H bond
(iii) Presence of one –OH group and two P–H bonds
(iv) High electron gain enthalpy of phosphorus
Solution:
Option (iii) Presence of one –OH group and two P–H bonds is the answer.