wiz-icon
MyQuestionIcon
MyQuestionIcon
6
You visited us 6 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following species contains three bond pairs and one lone pair around the central atom?

A
NH2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
PCl3
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
H2O
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
BF3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B PCl3
Representation of Lewis structure:
1. Pair of bonded electrons is represented by means of a dash usually called a bond.
2. Lone pairs or non-bonded electrons are represented by dots.
3. Electron represent in the last shell of atoms are called valence electrons.

(a) Structure of NH2
Number of bond pairs: 2
Number of lone pairs: 2
(b) Structure of PCl3Number of bond pairs: 3
Number of lone pair: 1

(c) Structure of H2O

Number of bond pairs: 2
Number of lone pair: 2

(d) Structure of BF3

Number of bond pairs: 3
Number of lone pair: 0

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon