1.

Copper metal belongs to a crystal system represented by the crystal dimensions as

Answer»

`ALPHA=beta=gamma=90^(@), a=B=C`
`alpha ne beta ne gamma, a=b=c`
`alpha=beta=90^(@), gammane90^(@) a=b=c`
`alpha=beta=gamma=90^(@), a ne b ne c`

Answer :A


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