MCQ
कैल्सियम की परमाणु संख्या क्या है?
  • 20
  • B
    15
  • C
    17
  • D
    18

Answer

Correct option: A.
20
a

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