Which one of the following schemes of ordering closed packed sheets of equal sized spheres do not generate close packed lattice?
A
ABCABC
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B
ABACABAC
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C
ABBAABBA
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D
ABCBCACBC
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Solution
The correct option is B ABBAABBA In option C, the scheme ABBAABBA of ordering closed packed sheets of equal-sized spheres do not generate close-packed lattice as BB, AA and BB represent same layers of sheets placed together.