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The normality of 0.3 M phosphorus acid (...

The normality of 0.3 M phosphorus acid `(H_(3)PO_(3))` solution is :

A

0.1

B

0.9

C

0.3

D

0.6

Text Solution

Verified by Experts

The correct Answer is:
D
`H_(3)PO_(3)` is a dibasic acid
`({:(" O"),(" ||"),(HO-P-H),(" |"),(" OH"):})`
its basicity = 2
Normality = Molarity `xx` Basicity
`= 0.3 xx 2 = 0.6 N`.
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