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A compound is compound by cation C and a...

A compound is compound by cation C and anion A. The anions hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is

A

`C_2A_3`

B

`C_3A_2`

C

`C_3A_4`

D

`C_4A_3`

Text Solution

Verified by Experts

The correct Answer is:
C
Anions(A) are in HCP, so number of anions
Cations are in 75% O.V., so number of cations
`=6xx(75)/(100)`
`=9/2`
Thus formula of compound is
`C_(9/2) A_6 implies C_9A_(12)`
`C_9A_(12) implies C_3A_4`
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