wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What is the reason for the formation of polar covalent bond in HCl?


A

It reacts with water.

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

The difference in the atomic mass of H and Cl.

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

Chlorine is more electronegative than hydrogen.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

Hydrogen is more electronegative than Chlorine.

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

Chlorine is more electronegative than hydrogen.


The force with which an atom attracts a bonding pair of electrons towards itself is called electronegativity. In the case of HCl, the two nuclei have different attractive forces(electronegativities), thus, they “pull” the electron pair to different degrees. Chlorine is more electronegative than hydrogen, as a result, the electron pair is shifted more towards the chlorine atom.

That is, the electron pair that is bonding HCl together shifts toward the chlorine atom because it has a larger electronegativity value. A bond in which the electron pair is shifted toward one atom is called a polar covalent bond.


flag
Suggest Corrections
thumbs-up
3
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Polar Covalent bond
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon