1.

Which of the following is the unit cell dimensions of K_2Cr_2O_7 ?

Answer»

`a NE b ne C , alpha ne BETA ne gamma ne 90^@`
`a= b = c , alpha = beta = gamma = 90^@`
`a ne b ne c, alpha = beta = gamma = 90^@`
`a = b= c , alpha = beta = gamma ne 90^@`

Answer :A


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