question_answer

Which of the following molecule contains one lone pair of electron on the central atom?

A)  \[N{{H}_{3}}\]                 

B)         \[C{{H}_{4}}\]  

C)         \[CHC{{l}_{3}}\]         

D)         \[C{{l}_{2}}\]

Correct Answer: A

Solution :

In \[N{{H}_{3}}\], N the central atom has one lone pair of electrons Pair of electrons in the last shell which do not take part in bond formation are called lone pair of electrons.