Heat of neutralisation of weak acid and strong base is less than the heat of neutralisation of strong acid and strong base due to:

Energy has to be spent for the total dissociation of weak acid

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Salt of weak acid and strong base is not stable

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Incomplete dissociation of weak acid

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Incomplete neutralisation of weak acid

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Solution

The correct option is B Energy has to be spent for the total dissociation of weak acid
Energy has to be spent for the total dissociation of weak acid.

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Heat of neutralisation of weak acid and strong base is less than the heat of neutralisation of strong acid and strong base due to:

The correct option is B Energy has to be spent for the total dissociation of weak acidEnergy has to be spent for the total dissociation of weak acid.

The correct option is B Energy has to be spent for the total dissociation of weak acid
Energy has to be spent for the total dissociation of weak acid.