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Assertion: The enthalpies of neutralisation of strong acids and strong bases are always same. Reason: Neutralisation is heat of formation of water.

Monjur Alahi

Assertion: The enthalpies of neutralisation of strong acids and strong bases are always same.
Reason: Neutralisation is heat of formation of water.
A. If both ther assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both the assertion and reason are true but reason is not the correct explantion of the assertion.
C. If the assertion is true but reason is false.
D. If assertion is false but reason is true.


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Salim Ahmed Kawsar

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Correct Answer - A
The enthalpies of neutralisation of strong acids and strong bases are the same they are `13.7Kcal` . The reason is that it is heat of formation of water from `H^(+)` and `OH^(-)` ions.
`H^(+)+OH^(-)rarrH_(2)O,DeltaH=13.7Kcal` . Thus, both assertion and reason are true.

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