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Q.

One mole of H3PO3  on reaction with excess of NaOH gives:

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a

One mole of Na2HPO3

b

Two moles of Na2H2PO3

c

Two moles of Na2HPO3

d

One mole of Na3PO3

answer is A.

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Detailed Solution

H3PO3+2NaOH→Na2HPO3+2H2O 1mol                                     1mol
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