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In which of the following ionic solids, the cations and anions are arranged in a body-centred cubic (BCC) structure?

Option: 1

CsCl


Option: 2

NaCl


Option: 3

CaF_2


Option: 4

MgO


Answers (1)

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CsCl also known as caesium chloride, has a body-centred cubic (BCC) arrangement, where the caesium (Cs^+)cations are at the centre of the cube and the chloride (Cl^-) anions are at the corners of the cube.

NaCl (sodium chloride) has a face-centred cubic (FCC) structure, CaF_2 (calcium fluoride) has a fluorite structure, and MgO (magnesium oxide) has a rock salt structure.

Hence, the correct answer is an option (1) CsCl.

Posted by

Rishabh

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