$Assertion (A)$: van der Waals' forces are responsible for chemisorption. $Reason (R)$: High temperature is favourable for chemisorption. The correct answer is
- A$A$ is false,but $R$ is true
- BBoth $A$ and $R$ are correct and $R$ is the correct explanation of $A$
- CBoth $A$ and $R$ are correct and $R$ is not the correct explanation of $A$
- D$A$ is true,but $R$ is false
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