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  1. The weight of 6.023 × 1022 atoms of carbon is
    1. 12 gms
    2. 120 gms
    3. 1.2 gms
    4. 0.12 gms
Correct Option: A

The number 6.023 ×1023 is known as Avogadro’s Number which is the number of atoms in 12g of the isotope carbon-12. 6.023 ×1023 carbon atoms weigh = 12 grams.



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