JEE Main 2024 (5 Apr, Shift 2) Chemistry Q62: VSEPR Theory

Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : $\mathrm{NH_3}$ and $\mathrm{NF_3}$ molecule have pyramidal shape with a lone pair of electrons on nitrogen atom. The resultant dipole moment of $\mathrm{NH_3}$ is greater than that of $\mathrm{NF_3}$.
Reason (R) : In $\mathrm{NH_3}$, the orbital dipole due to lone pair is in the same direction as the resultant dipole moment of the $\mathrm{N-H}$ bonds. F is the most electronegative element.
In the light of the above statements, choose the correct answer from the options given below :

Accepted Answer

Option 1: Both (A) and (R) are true and (R) is the correct explanation of (A)

Answer

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

Answer

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

Answer

(A) is true but (R) is false

Answer

(A) is false but (R) is true

JEE Main 5 April 2024, Shift 2, Chemistry Q62

Same idea in other shifts