Question

Which of the following is paramagnetic as well as coloured?

• A. $S{c}^{3+}$
• B. $T{i}^{4+}$
• C. $C{u}^{2+}$
• D. $C{u}^{+}$

Answer 1

The correct option is C $C{u}^{2+}$

$C{u}^{2+}:\left[Ar\right]3d^9$; one unpaired electron. Thus, coloured and paramagnetic