Q. मानव अस्थि का मूल तत्व है ?

(A) फॉस्फोरस
(B) आयरन
(C) जिंक
(D) कैल्शियम

✅ Correct Answer: (A) फॉस्फोरस

Published by Ram Sharma ⭐ 193.88K Points at 26-May-2024 08:44 am in Chemistry

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