Question

# In which of the following neutralisation reactions, the heat of neutralisation will be highest?

A
HCl and NaOH
B
CH3COOH and NaOH
C
CH3COOH and NH4OH
D
HCl and NH4OH

Solution

## The correct option is A $$HCl$$ and $$NaOH$$The heat of neutralisation will be highest for the reaction involving strong acid as well as strong base.Since, $$CH_3COOH$$ is a weak acid and $$NH_4OH$$ is a weak base so the options B,C,D will not have maximum heat of neutralisation, while in option A both $$HCl$$ and $$NaOH$$ are strong so it will have highest heat of neutralisation.Hence, answer is option A.Chemistry

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