Assertion :Heat of neutralisation of nitric acid with $N a O H$ is same to that of $H C l$ and $N a O H$ . Reason: In both cases strong acid and strong base are neutralised.
$H^{+} + {O H}^{-} \to H_{2} O$

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Heat of neutralisation is always same for all strong acids and bases.
Both $H C l$ and $n i t r i c$ $a c i d$ are strong acids and $N a O H$ is a strong base.

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Assertion :Heat of neutralisation of nitric acid with NaOH is same to that of HCl and NaOH. Reason: In both cases strong acid and strong base are neutralised.H++OH−→H2O

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionHeat of neutralisation is always same for all strong acids and bases.Both HCl and nitric acid are strong acids and NaOH is a strong base.

Assertion :Heat of neutralisation of nitric acid with $N a O H$ is same to that of $H C l$ and $N a O H$ . Reason: In both cases strong acid and strong base are neutralised.
$H^{+} + {O H}^{-} \to H_{2} O$

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Heat of neutralisation is always same for all strong acids and bases.
Both $H C l$ and $n i t r i c$ $a c i d$ are strong acids and $N a O H$ is a strong base.