Assertion: `Ti^(3+)` salts are coloured whereas `Ti^(4+)` salts are white.
Reason: `Ti^(3+)` is less stable than `Ti^(4+)`

Options

A. If both (A) and (R) are correct and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If (A) is incorrect but (R) is correct.

Answer

b

Explanation

Correct R: `Ti^(3+)` salts have one unpaired electron in d-subshell `(3d^1)` whereas `Ti^(4+)` salts have no electron in the d-subshell `(3d^0)`.