Question

Which order is true with reference to size of species?
(A) Pb < Pb²⁺ < Pb⁴⁺
(B) Pb⁴⁺ > Pb²⁺ > Pb
(C) Pb > Pb²⁺ > Pb⁴⁺
(D) Pb²⁺ < Pb < Pb⁴⁺

Answer 1

Answer:

Option c

Explanation:

As we move down the group the lower oxidation state is more stable than higher O. S due to the relavitistic effect.