Question

Which of the following overlaps gives σ− bond along x-axis as internuclear axis?

a) pz and pz
b)s and pz
c) s and px
d) dx2-y2 and dx2-y2

please please explain the correct answer
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Answer 1

Answer:

pz and pz

Explanation:

Sigma bond is always formed between 2 half filled atomic orbitals along their inter-molecular axis, i.e. the line joining the centres of the nucler of 2 atoms (axial overlapping).

From given data, if we consider x-axis as the intermolecular axis, P2+P2 overlapping is not possible as both lie on z- axis.

So, the option A is the correct answer.

Answer 2

Answer: (c)

Explanation:

s and px