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A metallic element exists in simple cubi...

A metallic element exists in simple cubic structure. Each edge length of the unit cell is `3A^(0)`. The density of metal is 10 gm cm. How many unit cells will be there in 16.2 gm of the metal? 

A

`6xx10^(22)`

B

`16xx10^(31)`

C

28

D

42

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The correct Answer is:
A
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