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Standard XII

Chemistry

Examples of Ionic Compounds

A mineral has...

Question

A mineral has the formula $A B_{2}$ and crystallizes in the cubic close packed lattice, with atoms A occupying the lattice points. The co-ordination number and the fraction of tetrahedral sites occupied by atoms B are:

4, 100%

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6, 75%

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1, 25%

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6, 50%

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Solution

The correct option is A 4, 100%
It's $C a F_{2}$ type structure.

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A mineral has the formula AB2 and crystallizes in the cubic close packed lattice, with atoms A occupying the lattice points. The co-ordination number and the fraction of tetrahedral sites occupied by atoms B are:

The correct option is A 4, 100%It's CaF2 type structure.

A mineral has the formula $A B_{2}$ and crystallizes in the cubic close packed lattice, with atoms A occupying the lattice points. The co-ordination number and the fraction of tetrahedral sites occupied by atoms B are:

The correct option is A 4, 100%
It's $C a F_{2}$ type structure.