Question

Which structure the compound will adopt if radius ratio is more than 1.0?

• A. Cubic
• B. Octahedral
• C. Tetrahedral
• D. Fcc

Answer 1

The correct option is D Fcc

Structure Radius ratio

Triangular	0.155<$\frac{r}{R}$<0.225
Tetrahedral	0.225<$\frac{r}{R}$<0.414
Octrahedral	0.414<$\frac{r}{R}$<0.732
Bcc	0.732<$\frac{r}{R}$<1.00
Fcc or hcp	more than 1.0