Question

Orthophosphorous acid can be made from phosphorous trioxide.

(a) True

(b) False

The question was posed to me by my school principal while I was bunking the class.

Asked question is from P-Block Elements in section P-Block Elements of Chemistry – Class 12

Answer 1

Correct option is (a) True

Explanation: Orthophosphorous acid, also known as phosphonic acid, is an oxoacid of phosphorus. It can be prepared by adding phosphorus trioxide (P4O6) to water (H2O) in the ratio 1:6 resulting in the formation of 4 molecules of phosphonic acid.