MCQ
The element having the highest first ionization enthalpy is
  • A
     $\mathrm{Si}$
  • B
    $\mathrm{Al}$
  •  $\mathrm{N}$
  • D
    $\mathrm{C}$

Answer

Correct option: C.
 $\mathrm{N}$
c
$\mathrm{Al}<\mathrm{Si}<\mathrm{C}<\mathrm{N} ; \mathrm{IE}_1$ order.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free