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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.
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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