Question

In the reaction, 2NaOH + H3PO3 →
Na2HPO3 + 2H2O, the equivalent mass of
H3PO3 is (M: Molar mass of H3PO3)
M
(A) M
(B)
3
M
w/ /
2M
(C)
N13
(D)
2
3​

Answer 1

ANSWER : would you please provide the options correctly, I have give the answer

STEP BY STEP EXPLANATION:

Phosphorus acid, H3 PPO , is a dibasic (diprotic) acid. Its basicity is 2.

Equivalent mass = Molecular mass/basisity

Therefore, its equivalent mass = Molecular mass/2 = 82/2 = 41.