Q. लेड पेन्सिल में लेड कितने प्रतिशत होता है ?

(A) 100
(B) 77
(C) 65
(D) 0

✅ Correct Answer: (D) 0

Published by Rakesh Kumar ⭐ 28.44K Points at 26-May-2024 08:45 am in Chemistry

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