Question

On decreasing the internuclear distance below the optimum distance where
minimum) there is a steep increase in potential energy of a molecule due to
1) Increase in force of attraction between electrons and nuclei
2) Increase in stability of the bonded atoms
3) Equal probability of finding bonding electrons near to either of the nuclei
4) Increase in net repulsion in the molecule​

Answer 1

Answer:

4)

Explanation:

As on decreasing internuclear distance due

to these electrons comes closer to each other

and also nucleus to nucleus closer so repulsion between both of them increases.

The same charge will always repel each other

so the answer is to increase in interelectronic and internuclear repulsion.

Answer 2

Answer: the correct answer is option (4)- Increase in net repulsion in the molecule.
Explanation:
When we decrease the internuclear distance below the optimum distance, these electrons come closer to each other and also both the nucleus gets closer to each other so repulsion between both of them increases. And the same charge will always repel each other.
Hence, the answer is to increase in the net repulsion in molecule.
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