Question

Which of the following are Molecules?

(i) O₂

(ii) Argon

(iii)Ammonia

(iv) Helium

(v) Water

(vi) Sugar

• A. i, iii, v, vi
• B. i, iv, ii
• C. iii, v, vi
• D. ii, iv, v

Answer 1

The correct option is A i, iii, v, vi

Generally, a molecule is an electrically neutral group of two or more atoms held together by chemical bonds.

Ammonia is a molecule consisting of 1 atom of Nitrogen and 3 atoms of Hydrogen.

Water is a molecule consisting of 1 atom of Oxygen and 2 atoms of Hydrogen.

Sugar is a molecule consisting of 12 atoms of Carbon, 22 atoms of Hydrogen and 11 atoms of Oxygen.

Argon and helium are inert gases, as they are stable and they do not from molecules.