Question

Titanium shows the magnetic moment of 1.73 B.M. in its compound. What is the oxidation number of $Ti$ in the compound?

• A. 1
• B. 4
• C. 3
• D. 2

Answer 1

The correct option is C 3

Magnetic moment = $\sqrt{n(n+2)}$ = 1.73 B.M.

$\therefore$ Unpaired electrons, $n$ = 1

Now, configuration of $Ti$ = $\left[Ar\right]4s^{2}3d^2$.

Hence, the oxidation number must be +3.