Question

9. Which of the following is not radical?
a) Cl¯
b) CO₃²¯
c) SO₃²¯
d) SO₂
10. The atomicity of H₂SO₄

Answer 1

Explanation:

Monoatomic-composed of 1 atom e.g. He, Ne, Ar (all noble gases are monoatomic)

Diatomic-composed of 2 atoms e.g. H2 , N2 , O2

Triatomic-composed of 3 atoms e.g. O3

Polyatomic-composed of 3 or more atoms e.g. P4 , S8