(A) $H-H$ bond enthalpy $= 435.88 \ kJ \ mol^{-1}$.$D-D$ bond enthalpy $= 443.35 \ kJ \ mol^{-1}$.Due to the difference in their bond dissociation ent

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Both $(A)$ and $(R)$ are correct and $(R)$ is the correct explanation of $(A)$

(A) $H-H$ bond enthalpy $= 435.88 \ kJ \ mol^{-1}$.$D-D$ bond enthalpy $= 443.35 \ kJ \ mol^{-1}$.Due to the difference in their bond dissociation enthalpies,the rates of reactions involving protium and deuterium differ significantly.Thus,both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$.

Class 11 Chemistry Hydrogen Hydrogen

Medium

Given below are two statements:
Assertion $(A)$: Protium and deuterium differ in their rates of reactions.
Reason $(R)$: They have different enthalpies of bond dissociation.
The correct answer is:

AP EAMCET 2023 All AP EAMCET

A
Both $(A)$ and $(R)$ are correct and $(R)$ is the correct explanation of $(A)$
B
Both $(A)$ and $(R)$ are correct but $(R)$ is not the correct explanation of $(A)$
C
$(A)$ is correct but $(R)$ is incorrect
D
$(A)$ is incorrect but $(R)$ is correct