Question:
The intermolecular potential energy for the molecules A, B, C and D given below suggests that :
Correct Option: , 3
Solution:
From the given graph, potential energy of A-B molecule is minimum.
Thus A-B bond is most stable and have strongest bond amongst these.
$\mathrm{B} \rightarrow$ Most electronegative
$\mathrm{D} \rightarrow$ Least electronegative
$\mathrm{A}-\mathrm{B} \rightarrow$ Shortest bond length
A-B $\rightarrow$ Largest bond enthalpy
Therefore correct option is (3).
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