Given below are two statements. One is labelled as Assertio…

JEE Main - Previous Year Papers JEE MAIN 2022 JEE MAINS 29 JUNE 2022 PAPER SHIFT -2 Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 23, 2026

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: The first ionization enthalpy for oxygen is lower than that of nitrogen.

Reason : The four electrons in orbitals of oxygen experience more electron-electron repulsion.

In the light of the above statements, choose the correct answer from the options given below.

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

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

A is correct but

is not correct.

A is not correct but R is correct

Text Solution

Verified by Experts

The correct answer is:

Ionisation energy .

In oxygen atom, 2 of the electrons must occupy the same orbital resulting in an increased electron electron-repulsion.

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