1.

Which of the following systems is not correctly characterised ?

Answer»

CUBIC : `a=b =C,alpha=beta=gamma=90^(@)`
TETRAGONAL: `a=b ne c,alpha=beta=gamma=90^(@)`
orthorhombic : `a ne b ne c,alpha=beta=gamma=90^(@)`
RHOMBOHEDRAL: `a=b ne c,alpha=beta=gamma=90^(@)`

Answer :D


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