A catalyst is a substance which :

A catalyst is a substance which :
  1. is always in the same phase as in the reaction
  2. alters the equilibrium in a reaction
  3. does not participate in the reaction but alters the rate of reaction
  4. participates in the reaction and provides an easier pathway for the same

Solution

A catalyst does not take part in chemical reaction but it alters the rate of reaction. .

Asked in: JEE-TOPICTESTS-CHEMISTRY

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