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JEE Main2002ChemistrySome Basic Concepts of ChemistryActual

Number of atoms in 558.5 gram Fe (at.wt. of Fe =55.85 ~g ~mol ⁻¹ ) is

Options

  1. Atwice that in 60 g carbon
  2. B6.023 10²²
  3. Chalf that in 8 g ~He
  4. D558.5 6.023 10²³

Correct answer

A. twice that in 60 g carbon

Step-by-step solution

Fe ( no. of moles )= 558.5 55.85 =10 moles C (no. of moles )=60 / 12=5 moles.

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