$N_{2} + O_{2}$ $⇌$ $2 N O - H e a t$

The forward reaction would be favoured by:

high temperature

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low temperature

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high and low temperature

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constant temperature

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Solution

The correct option is B high temperature
The reaction is endothermic. Heat is absorbed during the reaction. When the temperature is raised, the forward reaction will be favoured so that the absorbed heat will nullify the effect of increased heat. So, the forward reaction will be favoured by high temperature.

Hence, the correct option is $A$

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