MCQ
सबसे कठोर प्राकृतिक पदार्थ है?
  • A
    सोना
  • B
    चाँदी
  • C
    लोहा
  • हीरा

Answer

Correct option: D.
हीरा
d

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