Question

Assertion (A): Copper sulfate conducts electricity in the molten state but not in the solid state.

Reason (R): Copper and sulfate ions are fixed in the lattice in molten state, while in solid state they can move freely.

Choose the correct option:

विकल्प

• 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 true, but R is false.

Explanation:

Assertion A is true: copper sulfate conducts electricity in the molten state because ions are free to move. Reason R is false: in the solid state the ions are fixed in the lattice and cannot move freely; in the molten state they can move freely.