Question

Which of the following is a true statement for the acids of phosphorus
$H_{2}P{O}_2,H_{3}P{O}_3$ and $H_{3}P{O}_4$?

• A. The order of their acidic strength is $H_{3}P{O}_4>H_{3}P{O}_3>H_{3}P{O}_2$
• B. All of them are reducing in nature.
• C. All of them are tribasic acids.
• D. The geometry phosphorus is tetrahedral in all the three.

Answer 1

The correct option is B All of them are reducing in nature.

(B) All of them are reducing in nature

because the acidic strength is in order $H_{3}P{O}_2>H_{3}P{O}_3>H_{3}P{O}_4$

and all of them are not tribasic acids and tetrahedral one.