Q. परमाणु भार का अन्तर्राष्ट्रीय मानक है ?

(A) N-14
(B) C-12
(C) H-1
(D) O-16

✅ Correct Answer: (B) C-12

Published by Priyanka Tomar ⭐ 35.28K Points at 26-May-2024 08:46 am in Chemistry

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