Q.

48g of Mg contains the same number of atoms as 160g of another element. The atomic mass of the element is

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a

24

b

320

c

80

d

40

answer is C.

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Detailed Solution

24g = NA atoms of Mg48g = 'X' atoms of MgX = 2NA 160g of an elements contains the same number of atoms of MgTwo gram atoms of element = 160gOne gram atoms of element = 80g
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