Multiple choice

NaCl typecrystal (with coordination no.6 :6) can be converted into CsCl type crystal (with coordination no.8 :8)by apply

  1. High temperature

  2. High pressure

  3. High temperature and high pressure

  4. Low temperature and low pressure
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Increasing pressure forces ions closer together, which favors a structure with a higher coordination number to maximize packing efficiency. Thus, NaCl (CN 6) converts to CsCl (CN 8) under high pressure.

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