Question

Which of the following exists as molecules?

(i) Oxygen gas

(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.