Assertion (A) Separation of Zr and Hf is difficult.
Reason (R ) Because Zr and Hf lie in the same group of the Periodic Table.

Options

A. Both A and Rare true and R is the correct explanation of A.
B. Both A and R are true but R is NOT the correct explanation of A.
C. A is true but R is false.
D. A is false and R is True

Answer

B

Explanation

Separation of Zr and Hf is difficult as both have same size.