(A) H(3)PO(3) is dibasic acid and H(3)PO...

(A) `H_(3)PO_(3)` is dibasic acid and `H_(3)PO_(4)` is tribasic
(R ) `H_(3)PO_(3)` has two replaceable H - atoms and `H_(3)PO_(4)` has three replaceable H - atoms

A

Both (A) and (R ) are true and (R ) is the correct explanation of (A)

B

Both (A) and (R ) are true and (R ) is not the correct explanation of (A)

C

(A) is true but (R ) is false

D

Both (A) and (R ) are false

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