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Chemistry · PYQ NEET UG 2019(1)

हिन्दी

A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is _________.

  1. \( \text{C}_3\text{A}_2 \)
  2. \( \text{C}_3\text{A}_4 \)
  3. \( \text{C}_4\text{A}_3 \)
  4. \( \text{C}_2\text{A}_3 \)

Correct answer · Option 2

\( \text{C}_3\text{A}_4 \)

Explanation

Let number of anions (A) = N. Number of octahedral voids = N. Cations (C) = \( 0.75\text{N} = \frac{3}{4}\text{N} \). Formula is \( \text{C}_{3/4}\text{N} \to \text{C}_3\text{A}_4 \).
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