MHT CET202015 Oct 2020Morning ShiftChemistrySolid StateActual
Sodium crystallises in bcc structure with radius 1 86 10⁻⁸ ~cm . Calculate the edge length of unit cell?
Options
- A4.29 10⁻⁸ ~cm
- B6 20 10⁻⁸ ~cm
- C8 05 10⁻⁸ ~cm
- D3 72 10⁻⁸ ~cm
Correct answer
A. 4.29 10⁻⁸ ~cm
Step-by-step solution
For bcc unit cell, r= 3 a 4 a = 4 r 3 = 4 1.86 10⁻⁸ ~cm 1.732 =4.29 10⁻⁸ ~cm