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NEET2020ChemistrySome Basic Concepts of ChemistryActual

Which one of the followings has maximum number of atoms?

Options

  1. A1   g of Mg s [Atomic mass of Mg = 24 ]
  2. B1   g of O 2 g [Atomic mass of O = 16 ]
  3. C1   g of Li s [Atomic mass of Li = 7 ]
  4. D1   g of Ag s [Atomic mass of Ag = 108 ]

Correct answer

C. 1   g of Li s [Atomic mass of Li = 7 ]

Step-by-step solution

Number of atoms = w   molar   mass   × N A × atomicity Number of atoms in 1 g of Li s = 1 7 × N A × 1 Number of atoms 1 g of Ag s = 1 108 × N A × 1 Number of atoms 1 g of Mg s = 1 24 × N A × 1 Number of atoms 1 g of O 2 g = 1 32 × N A × 2

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