1.

Assertion : Haber's synthesis of NH_(3) is carried out in the presence of a catalyst. Reason: the catalyst shifts the position of the equilibrium of the reaction N_(2)(g)+3H_(2)(g) hArr 2NH_(3)(g) tothe product side.

Answer»

if both assertion and REASON are CORRECT and reason is correctexplanation for assertion.
if both assertion and reason are correct but reason is not correct explanation for assertion.
if assertion is correct but reason is incorrect.
if assertion and reason boht are incorrect.

Solution :Correct reason. A CATALYST lowers the height of ENERGY barrier. As a result , the speeds of both forward and backward reactions increase.


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