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The heats of neutralisation of four acid...

The heats of neutralisation of four acids A, B, C and D are 13.7, 9.4, 11.2 and 12.4 kcal respectively when they are neutralised against a common base. The weakest acid among A,B,C and D is-

A

A

B

B

C

C

D

D

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B
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