Question

Which of the following oxy-acids has the maximum number of hydrogens directly attached to phosphorus?

• A. $H_4{P}_2{O}_7$
• B. $H_{3}P{O}_2$
• C. $H_{3}P{O}_3$
• D. $H_{3}P{O}_4$

Answer 1

Answer: (B)

Correct answer is (b) $H_{3}P{O}_2$