Ncert Exercises & Solutions

The percentage of empty space in a body centred cubic arrangement is ......... .

1. 74

2. 68

3. 32

4. 26

HINT: Packing efficiency of BCC = 68%

Explanation: Packing efficiency for bcc arrangement is 68% which represents total filled space in the unit cell.

Hence, empty space in a body centred arrangementis 100 — 68 = 32%.