(A) : Transition metals form colored ions
(R): They have completely filled d-orbitals in the nth shell.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

C

Explanation

(A) is true but (R) is false