Question:
The packing fraction of a crystal structure is 74%. The crystal structure is
The packing fraction of a crystal structure is 74%. The crystal structure is
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Packing efficiency: SC (52%), BCC (68%), FCC/CCP (74%), HCP (74%).
Updated On: Sep 19, 2025
- Simple cubic structure
- Face-centred cubic structure
- Body-centred cubic structure
- Crystal structure of Tungsten
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The Correct Option is B
Solution and Explanation
Step 1: Recall packing fractions.
- Simple cubic (SC): 52.4%.
- Body-centred cubic (BCC): 68.0%.
- Face-centred cubic (FCC): 74.0%.
Step 2: Identify correct structure.
Given 74% matches FCC (also called cubic close packing, CCP).
Final Answer: \[ \boxed{\text{Face-centred cubic structure}} \]
- Simple cubic (SC): 52.4%.
- Body-centred cubic (BCC): 68.0%.
- Face-centred cubic (FCC): 74.0%.
Step 2: Identify correct structure.
Given 74% matches FCC (also called cubic close packing, CCP).
Final Answer: \[ \boxed{\text{Face-centred cubic structure}} \]
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