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Question
State the following reaction whether heat is evolved or absorbed –
Two neutral gases on passage through an electric are given nitric oxide.
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Solution
Endothermic reaction, heat is absorbed.
Nitrogen and oxygen are the two neutral gases that form nitric oxide when electricity is passed.
\[\ce{\underset{Nitrogen}{N2(g)} + \underset{Oxygen}{O2(g)} ->[Electricity] \underset{Nitric oxide}{2NO(g)}}\]
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