Multiple choice

A molecule of CsCl in the solid-state has

  1. Face-centered cubic structure

  2. Body-centered cubic structure

  3. Simple cubic structure

  4. Close-packed hexagonal structure
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In solid CsCl (cesium chloride), the structure is body-centered cubic (BCC). In this arrangement, Cs+ ions occupy the corners of the cube and one Cl- ion sits at the body center (or vice versa). This differs from the simple cubic, face-centered cubic, or hexagonal close-packed structures. Each ion is surrounded by eight ions of the opposite type, giving it a coordination number of 8.

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