Question

Which combination of atoms can form a polar covalent bond?
A) H and Br
B) H and H
C) Na and Br
D) N and N

Answer 1

Hey mate ✌️✌️

Which combination of atoms can form a polar covalent bond?
A) H and Br☑️☑️
B) H and H
C) Na and Br
D) N and N

ANSWER ⏬⏬⏬

Hydrogen,Bromine.

Answer 2

answer : option (A) H and Br

explanation : A basic concept is that polar covalent bond between two atoms can be formed when

1. both atoms are non-metals.
2. both should be different non-metal elements.
3. electronegativity difference should be low but shouldn't equal to zero.

here in option (A) H and Br

both H and Br are non-metals and both are different elements and also electronegativity difference is low but not equal zero.

so, H and Br can form polar covalent compound.

hence, option (A) is correct choice.