A) \[N{{H}_{3}}\]
B) \[P{{H}_{3}}\]
C) \[Sb{{H}_{3}}\]
D) \[As{{H}_{3}}\]
Correct Answer: A
Solution :
[a] \[N{{H}_{3}}\] The N - H bond is most polar hence \[N{{H}_{3}}\] has the highest dipole moment. Dipole moment: Its the product of negative or positive charge (q) and the distance [d] between the centres of charges is called dipole moment dnoted by |li. \[N{{H}_{3}}\]also have pyramidal shapes with one lone pair of electrons on N atom.
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