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  • If the anions (A) form hexagonal closest packing and cations (C) occupy only 2/3 octahedral voids in it, then the general formula of the compound isOption: 1

If the anions (A) form hexagonal closest packing and cations (C) occupy only 2/3 octahedral voids in it, then the general formula of the compound is

Option: 1

 CA                         


Option: 2

 CA2                              


Option: 3

C3A2                                


Option: 4

C2A3


Answers (1)

best_answer

We know that, there are 6 A ions that form the HCP lattice

The number of Octahedral void in HCP lattice = 6

\therefore \text{number of A atoms} = 6 \times \frac{2}{3} = 4

 \text{Formula of Compound}=C_4A_6 \ or \ C_2A_3

Hence, the correct answer is Option (4)

Posted by

himanshu.meshram

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