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Standard V

Mathematics

Comparison of Volumes of Solids

A cubic solid...

Question

A cubic solid is made up of two elements A and B. Atoms B are at the corners of the cube and A at the body centre. What is the formula of the compound?

A_{2} B

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A B

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A B_{2}

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A B_{4}

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Solution

The correct option is B $A B$
Number of atoms B = $\frac{1}{8} \times 8 = 1$ for 8 corners.
Number of atom A = 1 at the body centre.
Hence the formula AB.

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A cubic solid is made up of two elements A and B. Atoms B are at the corners of the cube and A at the body centre. What is the formula of the compound?

The correct option is B ABNumber of atoms B = 18×8=1 for 8 corners.Number of atom A = 1 at the body centre.Hence the formula AB.

The correct option is B $A B$
Number of atoms B = $\frac{1}{8} \times 8 = 1$ for 8 corners.
Number of atom A = 1 at the body centre.
Hence the formula AB.