Question

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

Answer:

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:

D

Explanation:

Increase in Inter electronic and inter nuclear repulsions