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Question

Heat of neutralization is less negative than -13.7 Kcal/mole for the reaction:

A
HCl+NaOHNaCl+H2O
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B
H2SO4+2NaOHNa2SO4+2H2O
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C
HNO3+NaOHNaNO3+H2O
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D
CH3COOH+NaOHCH3COONa+H2O
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Solution

The correct option is D CH3COOH+NaOHCH3COONa+H2O
The enthalpy of neutralization (ΔHn) is the change in enthalpy that occurs when one equivalent of an acid and one equivalent of a base undergo a neutralization reaction to form water and salt.

The heat of neutralization is less negative for reactions of a weak acid strong base, strong acid weak base and weak acid weak base.

Hence, the correct option is D

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