MCQ
A reaction is catalysed by $ ‘X ’$. Here $ ‘X ’$
- ADecreases the rate constant of reaction
- BDoes not affect the equilibrium constant of reaction
- CDecreases the enthalpy of reaction
- ✓Decreases the activation energy
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$C{H_2} = C{H_2}\xrightarrow{{HBr}}X\xrightarrow{{{\text{Hydrolysis}}}}Y\mathop {\xrightarrow{{N{a_2}C{O_3}}}}\limits_{{I_2}{\text{ excess}}} Z$