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Some Basic Concepts of Chemistry question

2020 · Q82
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Some Basic Concepts of Chemistry question

2020 · Q82

NEETChemistrySome Basic Concepts of ChemistryMCQ+4 / −1
Which one of the following has maximum number of atoms?
  1. A
    1 g of Mg(s) [Atomic mass of Mg = 24]
  2. B
    1 g of O2(g) [Atomic mass of O = 24]
  3. C
    1 g of Li(s) [Atomic mass of Li = 7]
  4. D
    1 g of Ag(s) [Atomic mass of Ag = 108]
View written solutionFree

Correct answer: C

Number of atoms
= wmolarmass×NA×Atomicity{w \over {molarmass}} \times {N_A} \times Atomicitymolarmassw​×NA​×Atomicity

Number of Mg atoms = 124×NA{1 \over {24}} \times {N_A}241​×NA​

Number of O atoms = 132×2×NA{1 \over {32}} \times 2 \times {N_A}321​×2×NA​

Number of Li atoms = 17×NA{1 \over 7} \times {N_A}71​×NA​

Number of Ag atoms = 1108×NA{1 \over {108}} \times {N_A}1081​×NA​

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