Q. How many moles are there in 140g of Si (atomic mass of silicon is 28)

(A) 5
(B) 10
(C) 25
(D) 140

✅ Correct Answer: (A) 5

Published by Brijesh Goswami ⭐ 9.45K Points at 23-Apr-2022 07:42 pm in Chemistry

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