Question

Assertion (A): The concentration of aluminium is not done by leaching process.

Reason (R): In leaching process, the ore is dissolved in an acid or alkali.

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

A is false but R is true.

Explanation:

Leaching is actually used for concentration/purification of bauxite; the ore is dissolved in alkali. Hence A is false and R is true.