question_answer

A covalent molecule\[A{{B}_{3}}\]has pyramidal structure. The number of lone pair and bond pair of electrons in the molecule a respectively

A)  2 and 2                

B)  0 and 2

C)  3 and 1                

D)  1 and 3

Correct Answer: D

Solution :

                The pyramidal structure of covatent molecule \[A{{B}_{3}}\]is as Number of lone pair = 1 Number of bond pair = 3