A salt AB crystallises in BCC arrangemen...

A salt AB crystallises in BCC arrangement where edge length of cube is found to be `4Å`. Calcualte its density : (molar mass of salt AB = 128gm)

A

`(20/3)g//cm^(3)`

B

`(10/3)g//cm^(3)`

C

`(80/3)g//cm^(3)`

D

`20g//cm^(3)`

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