Q. निम्न में कौन सा एक तत्व है ?

(A) नीलम
(B) हीरा
(C) माणिक्य
(D) पन्ना

✅ Correct Answer: (B) हीरा

Published by Vinay ⭐ 28.75K Points at 26-May-2024 08:42 am in Chemistry

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