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Class 11
Chemistry
Chemical Bonding and Molecular Structure
considering x axis as the internuclear axis which...

Question:
Considering x-axis as the internuclear axis which out of the following will not form a sigma bond and why?

(a) 1s and 1s

(b) 1s and 2p_x

(c) 2p_y and 2p_y

(d) 1s and 2s.

Answer:

Sigma bond is always formed between two half filled atomic orbitals along their inter- nuclear axis ,i.e the line joining the centers of the nuclei of two atoms (axial overlapping).

From the given data if we consider x axis as the internuclear axis 2p_y and 2p_yoverlapping is not possible as both the 2p_y orbital will lie on y axis.While the other 1s, 2s, 2px all lie on X axis internuclear axis.

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Question:
Considering x-axis as the internuclear axis which out of the following will not form a sigma bond and why?

(a) 1s and 1s

(b) 1s and 2p_x

(c) 2p_y and 2p_y

(d) 1s and 2s.

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Question: Considering x-axis as the internuclear axis which out of the following will not form a sigma bond and why? (a) 1s and 1s (b) 1s and 2px (c) 2py and 2py (d) 1s and 2s.

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Question:
Considering x-axis as the internuclear axis which out of the following will not form a sigma bond and why?

(a) 1s and 1s

(b) 1s and 2p_x

(c) 2p_y and 2p_y

(d) 1s and 2s.