Question

The intermolecular potential energy for the molecules $A,B,C$ and $D$ given below suggests that :

• A. $D$ is more electronegative than other atoms
• B. A-D has the shortest bond length
• C. A-B has the stiffest bone
• D. A-A has the largest bond enthalpy

Answer 1

Answer: (C)

From the given graph, potential energy of AB molecule is minimum.

Thus A-B bond is most stable and have

strongest bond amongst these.

$B\to$ Most electronegative

$D\to$ Least electronegative

$A-B\to$ Shortest bond length

$A-B\to$ Largest bond enthalpy