A metal sulphide crystallizes with cubic close packed array of S^2- ions. Cations are Zn^2+ and Al^3+ ions. Only half of the octahedral voids and (1/8)^th of the tetrahedral voids are occupied by cati

Question

A metal sulphide crystallizes with cubic close packed array of S^2- ions. Cations are Zn^2+ and Al^3+ ions. Only half of the octahedral voids and (1/8)^th of the tetrahedral voids are occupied by cations. The correct conclusion regarding this solid is/are:

Prashant Kotian · Accepted Answer

Correct answer: B,D. (A) Second nearest neighbours of Cs are 6 and not 8 (in CsCl crystal). (B) There are 6 triangular voids around a sphere in two dimensional hcp layer. (C) r

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