MHT CET Chemistry question

Not in JEE Main or NEET syllabus

Zinc sulphide exists in two different forms zinc blende and wurtzite. Both occur as 4 : 4 coordination compounds. Choose the CORRECT option from among the following:

(A)Zinc blende has a bcc structure and wurtzite a fcc structure
(B)Zinc blende has a fcc structure and wurtzite a hcp structureCorrect
(C)Zinc blende as well as wurtzite have a hcp structure
(D)Zinc blende as well as wurtzite have a ccp structure

Answer: (B)

Solution

In zinc blende S2- ions form a ccp (fcc) lattice and in wurtzite they form an hcp lattice, with Zn2+

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Question ID VK-042988