Which statement is correct regarding a cataly | vedclass

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Question

(C) catalyst is a substance that alters the rate of a chemical reaction without itself undergoing any permanent chemical change.
$1$. $A$ catalyst ca

Vedclass · Accepted Answer

$C$. $A$ catalyst cannot change the enthalpy of reaction.

Vedclass · Answer

(C) catalyst is a substance that alters the rate of a chemical reaction without itself undergoing any permanent chemical change.
$1$. $A$ catalyst cannot initiate a reaction that is not thermodynamically feasible.
$2$. $A$ negative catalyst (inhibitor) increases the activation energy; it does not decrease it.
$3$. $A$ catalyst provides an alternative pathway with lower activation energy,but it does not change the initial and final energy states of the reactants and products; hence,the enthalpy of reaction $(\Delta H)$ remains unchanged.
$4$. In a reversible reaction,a catalyst increases the rate of both the forward and backward reactions to the same extent,thereby helping the system reach equilibrium faster without changing the equilibrium constant.

Which statement is correct regarding a catalyst?

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Which is True $(T)$ and False $(F)$ of the following statements?
$1.$ By catalyst,the forward reaction becomes fast and the reverse reaction becomes slow.
$2.$ $A$ catalyst decreases the potential energy of reactants and products.
$3.$ $A$ catalyst forms bonds in the reaction,so it is consumed.

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