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 R: The four electrons in 2 p orbitals of oxygen experience more electron-electron repulsion. In the light of the above statements, choose the correct answer from the options given below.

Question

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 R: The four electrons in 2 p orbitals of oxygen experience more electron-electron repulsion. In the light of the above statements, choose the correct answer from the options given below. (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 not correct. (D) A is not correct but R is correct

Tardigrade Admin · Accepted Answer

Ionisation energy = N > O. In oxygen atom, 2 of the 42 p electrons must occupy the same 2 p orbital resulting in an increased electron electron-repulsion.

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

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

A is correct but R is not correct.

A is not correct but R is correct

Ionisation energy =N>O. In oxygen atom, 2 of the 42p electrons must occupy the same 2p orbital resulting in an increased electron electron-repulsion.

Ionisation energy $= N > O$ .
In oxygen atom, 2 of the $42 p$ electrons must occupy the same $2 p$ orbital resulting in an increased electron electron-repulsion.