Question

The unit cell of a substance has cations A⁺ at the corners of the unit cell and the anions B⁻ at the center. The simplest formula of the substance is ____________.

Options

• AB

• A₂B

• AB₂

• None of these

Answer 1

The unit cell of a substance has cations A⁺ at the corners of the unit cell and the anions B⁻ at the center. The simplest formula of the substance is AB.

Explanation:

Contribution of A = `8 xx 1/8` = 1

Contribution of B = 1

Therefore, Formula is AB.