Questions
Salt,AB has a zinc blend structure. The radius of A2+ and B2- ions are 0.7 A and 1.8 A respectively. The edge length of AB unit cell is:
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a
2.5â«
b
5.09â«
c
5â«
d
5.77â«
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Correct option is D
rc+ra=3a40.7+1.8 = 1.732a4a = 2.5Ã41.732=5.77 A0
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Which of the following statements is correct in the zinc blende type structure of an ionic compound?
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