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ICSE Class 10 Chemistry Question 3 of 23

Solved Sample Paper 4 — Question 9

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9
Question

Question 1(ix)

One atomic mass unit is how much part the mass of C-12 atoms?

  1. 14\dfrac{1}{4}
  2. 112\dfrac{1}{12}
  3. 18\dfrac{1}{8}
  4. 116\dfrac{1}{16}
Answer

112\dfrac{1}{12}

Reason — Atomic mass unit is defined as 112\dfrac{1}{12}th the mass of an carbon atom C-12.