Q45 / 170 · Manipal (MET) 2021 · Chemistry

In group 15 elements which element show a fractional oxidation state?

  • Correct answer
    A
    N
  • B
    As
  • C
    Sb
  • D
    Bi

Solution

In group number 15 elements shows -III and III oxidation state (by gain or loss of three $p$ electrons). These shows V oxidation state due to loss of $n p^3+n s^2$ electrons. But nitrogen is unique in having a large number of oxidation states including a fractional one (i.e., $-\frac{1}{3}$ in $\left.\mathrm{N}_3 \mathrm{H}\right)$

Hence, the correct answer is option: 'A'.

Relevant Questions