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Which respresent an exothermic reaction ...

Which respresent an exothermic reaction :-

A

`2HgO(s)+180 K J rarr 2Hg(l)+O_(2)(s)`

B

`N_(2)O(g)+C(s)rarr CO(g)+N_(2)(g)-131 K J`

C

`N_(2)(g)+O_(2)(s)rarr 2NO(g) , Delta E = +181 K J`

D

`C_(2)H_(2)(g)+2H_(2)(g)rarr C_(2)H_(6)(g) , Delta E = -314 K J`

Text Solution

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The correct Answer is:
D
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