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Preparation of Hydrogen

The conversio...

Question

The conversion of atomic hydrogen into molecular hydrogen is______.

A

endothermic change

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B

exothermic change

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C

photochemical change

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D

nuclear change

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Solution

The correct option is B exothermic change
Reaction:

$2 H \to H_{2} + h e a t$

So, its a exothermic change.

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