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In which of the following changes, Delt...

In which of the following changes, `Delta H` is always negative :

A

enthalpy of solution

B

enthalpy of hydrogenation

C

enthaly of reaction

D

enthalpy of transition

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Verified by Experts

The correct Answer is:
2
Enthalpy of hydrogenation is always exothermic.
`i.e. DeltaH^(@) lt O`.
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