Question

Which of the following statements is not true about NaCl structure

[DCE 2001]

• A. Cl^- ions are in fcc arrangement
• B. Na⁺ ions has coordination number 4
• C. Cl^- ions has coordination number 6
• D. Each unit cell contains 4 NaCl molecules

Answer 1

The correct option is B

Na⁺ ions has coordination number 4

In NaCl crystal Na⁺ ions has coordination number 6.