1.

Assertion (A): Hydrogen reacts faster with halogens than deuterium. Reason (R) : The activation energy of hydrogen is less than that of deuterium.

Answer»

Both A and R are TRUE and R is the CORRECT EXPLANATION of A
Both A and R are true and R is not the correct explanation of A
A is true but R is false
A is false but R is true

Answer :A


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