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Q.

Which of the following contains largest number of atoms?
$[C = 12, Ca = 40, Cu = 63.5, Cd = 112]$

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a

4 gm carbon

b

12 gm calcium

c

6.35 gm copper

d

22.4 gm cadmium

answer is A.

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Detailed Solution

The number of atoms is as follows

$(a) \frac{4}{12} N_{A} (b) \frac{12}{40} N_{A} (c) \frac{6.35}{63.4} N_{A} (d) \frac{22.4}{112} N_{A}$

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