MCQ
Most abundant uncombined element present in atmosphere is:
  • A
    $Ca$
  • B
    $Mg$
  • C
    $Al$
  • $N$

Answer

Correct option: D.
$N$
Nitrogen gas $N_2$​ makes up about $78\%$ of the atmosphere by volume.

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