Question

The normality of `0.3 M` phosphorous acid `(H_(3) PO_(3))` is
A. (a)0.1
B. (b)0.9
C. (c )0.3
D. (d)0.6

Answer 1

Correct Answer - D
`H_(3)PO_(3)` is a dibasic acid and thus its molecular weight `=2xx "equivalent" wt`.
`:. 1 M=2N`
Hence, `0.3 M=2xx0.3=0.6 N`