1.

The heats of neutralisation of \[C{{H}_{3}}COOH\], \[HCOOH,\text{ }HCN\] and \[{{H}_{2}}S\] are\[-13.2,-13.4\], \[~-2.9\]  and \[-3.8\text{ }kcal\] per equivalent respectively. Arrange the acids in increasing order of strength

A. \[HCOOH>C{{H}_{3}}COOH>{{H}_{2}}S>HCN\]
B. \[C{{H}_{3}}COOH>HCOOH>{{H}_{2}}S>HCN\]
C. \[{{H}_{2}}S>HCOOH>C{{H}_{3}}COOH>HCN\]
D. \[HCOOH>{{H}_{2}}S>C{{H}_{3}}COOH>HCN\]
Answer» B. \[C{{H}_{3}}COOH>HCOOH>{{H}_{2}}S>HCN\]


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