Match the column — Solid State Chemistry Question

💡 Solution & Explanation

Rock salt (A): CN is 6:6 (R); anions in FCC, distance is $a/\sqrt{2}$ (S). Zinc blende (B): CN of cation is 4 (P); cation-anion distance is $\frac{\sqrt{3}a}{4}$ (Q); CN is 4:4 (R); anions in FCC, distance is $a/\sqrt{2}$ (S). Fluorite (C): cation-anion distance is $\frac{\sqrt{3}a}{4}$ (Q). Therefore, correct pairs are A $\rightarrow$ R, S; B $\rightarrow$ P, Q, R, S; C $\rightarrow$ Q.