Which of the following arrangements correctly represents hexagona… - Vidyadip

MCQ

Which of the following arrangements correctly represents hexagonal and cubic close packed structure respectively?

✓
$\text{ABAB}.....$ and $\text{ABCABCABC}.....$
B
$\text{ABCABC}.....$ and $\text{ABAB}....$
C
Both have $\text{ABCABC}......$ arrangement
D
Both have $\text{ABAB}...$ arrangement

✓

Answer

Correct option: A.

$\text{ABAB}.....$ and $\text{ABCABCABC}.....$

$\text{ABAB}....$ and $\text{ACBACB}.....$ arrangements correctly represents hexagonal and cubic close$-$packed structure respectively.
Note$:\ \text{AAAA}$ type arrangement represents simple cubic structure.
$\text{ACBACB}.....$ arrangement can also be represented as $\text{ABCABC}......$ arrangement.

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