Statement I - An exothermic reaction has a positive - H valueBecauseStatement II - Heat must be added to the reaction for the reaction to occur

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Enthalpy

Statement I :...

Question

Statement I : An exothermic reaction has a positive $Δ H$ value
Because
Statement II : Heat must be added to the reaction for the reaction to occur

Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1 .

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Both the Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

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Statement 1 is correct but Statement 2 is not correct.

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Statement 1 is not correct but Statement 2 is correct.

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Both the Statement 1 and Statement 2 are not correct.

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Solution

The correct option is E Both the Statement 1 and Statement 2 are not correct.
Answer (E)

An exothermic reaction has a negative ΔH value,so statement 1 is not correct.
It is not necessary that heat must be added to the reaction for the reaction to occur, only endothermic reactions requires heat.
so both statement 1 and 2 are not correct.

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Statement I : An exothermic reaction has a positive ΔH valueBecauseStatement II : Heat must be added to the reaction for the reaction to occur

Statement I : An exothermic reaction has a positive $Δ H$ value
Because
Statement II : Heat must be added to the reaction for the reaction to occur