Question

The compound which contains two $P–OH$ and two $P–H$ bonds is:

• A. $H_4{P}_2{O}_5$
• B. $H_4{P}_2{O}_6$
• C. $(HP{O}_3{)}_3$
• D. $H_4{P}_2{O}_7$

Answer 1

The correct option is A $H_4{P}_2{O}_5$

Compound	Structure
$H_4{P}_2{O}_5$
$H_4{P}_2{O}_6$
$(HP{O}_3{)}_3$
$H_4{P}_2{O}_7$

In $H_4{P}_2{O}_5,$ two $P-OH$ bonds and two $P-H$ bonds are present.