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In corundum structure, cations occupy

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1/3 of octahedral voids

2/3 of octahedral voids

1/4 ofoctahedral voids

1/2 ofoctahedral voids

answer is B.

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Detailed Solution

In corundum, structure, 2/3rd of octahedral voids are occupied by cations.

When two similar voids from two different strata combine, an octahedral void is formed. As a result, when the tetrahedral voids of the first and second layers coincide, an octahedral void is produced.

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