JEE Main 2022 · 28 Jul · Shift 2 · Chemistry Q31

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ChemistrySingle correct+4 / -1Question 31 of 90

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

Assertion A : Zero orbital overlap is an out of phase overlap.

Reason R : It results due to different orientation / direction of approach of orbitals.

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

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

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

A is true but R is false

A is false but R is true

Answer and worked solution

Official answer: A

Zero overlap. When orbitals approach so that their positive and negative lobes overlap equally (for example $p_x$ meeting $p_y$ ), the net overlap is zero, which NCERT treats with out-of-phase overlap. It comes from the orientation of approach, so R explains A.

(A)

Topics:Covalent bonding and Lewis structures

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JEE Main 2022 · 28 Jul · Shift 2, Chemistry question 31