Q.
For 10-2 M H3PO3 solution which of the following relations is correct ?
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a
H3PO3 + H2PO3- + HPO32- + PO32- = 10-2
b
H3PO3 + H2PO3- + HPO32- = 10-2
c
H2PO3- + HPO32- + PO33- = 10-2
d
H3PO3 + H2PO3- + 2HPO32- = 10-2
answer is B.
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Detailed Solution
H3PO3⇄H2PO3- + H+H2PO3-⇄HPO32- + H+ H3PO3 is a dibasic acid.
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