Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [A] and [B] are respectively

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Canvas Classes · Accepted Answer

Step 1: White phosphorus + :

A =

Step 2: Hydrolysis of :

B =  (phosphorous acid)

is a dibasic acid (has 2 ionisable OH groups and 1 non-ionisable P–H bond).

Answer: Option (2) —  and

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