Question

Which of the following is incorrect about hypophosphorous acid?

• A. It is also called phosphonic acid
• B. The oxidation state of phosphorus is $+1$
• C. It is monobasic
• D. It is represented by the formula $H_{3}P{O}_2$

Answer 1

The correct option is A It is also called phosphonic acid

Hypophosphorous acid $\left(H_{3}P{O}_2\right),$ also known as phosphinic acid, is an oxoacid of phosphorus in which the oxidation state of phosphorus is $+1.$ It is monobasic in nature, that is, it dissociates to produce one hydrogen ion.