A) \[{{C}_{3}}{{A}_{4}}\]
B) \[{{C}_{4}}{{A}_{3}}\]
C) \[{{C}_{2}}{{A}_{3}}\]
D) \[{{C}_{3}}{{A}_{2}}\]
Correct Answer: A
Solution :
| [a] Solid state |
| C : A |
| 75% O.V. : (HCP) |
| \[6\times \frac{75}{100}\] : 6 |
| \[\frac{3}{4}\] : 1 |
| 4 |
| 3 : 4 |
| \[{{C}_{3}}{{A}_{4}}\] |
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