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Number of unit cells in 4 g of X which c...

Number of unit cells in 4 g of X which crystallises in bcc pattern is `(N_A=Avagadro's law)`

A

`0.1 N_A`

B

`2xx0.1N_A`

C

`0.1/2 N_A`

D

`2xxN_A`

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