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Mass of one atom of the element X is `1.66xx10^(-24) g`. Number of atoms in 1 g of the element is:

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Mass of one atom of the element X is `1.66xx10^(-24) g`. Number of atoms in 1 g of the element is:
A. `1.66xx10^(-24)`
B. `1.66xx10^(24)`
C. `1.66xx10^(-24)xxN_(A)`
D. `6.02xx10^(23)`
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Correct Answer - D
`1 g = (1)/(1.66xx10^(-24)gatom^(-1)) = (10^(24))/(1.66) atom`
`= 6.02xx10^(23) atoms`
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