Question

In metal deficiency defect

• A. Cations are missing from the lattice points
• B. Anions are missing from the lattice points
• C. Charge of the anion is increased
• D. Charge of the anion is decreased

Answer 1

The correct option is A

Cations are missing from the lattice points

In metal deficiency defect cations miss from their Lattice points, and to balance the negative charge the neighboring cation’s charge is increased. No change in charge of anion. So only option correct is (a)

Metal deficiency defect diagram.

In this diagram we can see Fe²⁺ left the lattice sites and to balance the charge with O^2- ions charge of Fe²⁺ increased to +3.(Fe³⁺ ions)