1.

A metal has face centred cubic arrangement . If length of the edge of the cell is x pm and M is its atomic mass, then density will be equally to ( N_(0) is Avogadro number )

Answer»

`( M xx 10^(30))/( x^(3) xx N_(0)) g cm^(-3)`
`(M xx N_(0))/( x^(3)) g cm^(-3)`
`( 4M )/( x^(3) xx N_(0)) xx 10^(30) g cm^(-3)`
`( M ) /( 4x^(3) xx N_(0)) g cm^(-3)`

ANSWER :C


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