Question

A compound is formed by cations c and anion a. Then anions form hcp lattice and the cations occupy 75% of octahedralvoids the formula of compounds is

Answer 1

Answer:

Explanation:

coordination number of hexagonal close packed structure (HCP) = 6

and also co-ordination number of octahedral voids = 6

a/c to question,

A form hcp lattice

so, number of A in compound = 6

C occupy 75% of octahedral voids ,

so, number of C in compound = 75% of 6

= 3/4 × 6 = 9/2

now, formula will be C9/2A6 or, C3A4

hence, required formula of compound is C4A4.

Answer 2

Answer:

Explanation:

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