Isotopes of hydrogen same chemical |HydrogenJEEMain2023

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JEE MAIN 2023

13-4-23 S2

Question

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Isotopes of hydrogen have almost same chemical properties, but difference in their rates of reaction.
Reason R: Isotopes of hydrogen have different enthalpy of bond dissociation.
In the light of the above statements, choose the most appropriate answer from the options given below:

Select the correct option:

A

Both A and R are correct but R is NOT the correct explanation of A.

B

Both A and R are correct and R is the correct explanation of A.

C

A is not correct but R is correct.

D

A is correct but R is not correct.

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Sol. Source NCERT Since the isotopes have the same electronic configuration, they have almost same chemical properties. The only difference is in their rates of reactions, mainly due to their different enthalpy of bond dissociation.

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