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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