Number of oxygen atoms present in 1 gram of calcium carbonate are

6 × 1021

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1.8 × 1022

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6 × 1022

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8 × 1022

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Solution

The correct option is B
1.8 × 1022

100gm of $C a C O_{3}$ contains 3N oxygen atoms
Here, N = Avogadro's Number

1 gm of $C a C O_{3}$ contains 0.03N oxygen atoms

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