MCQ
Find Out the correct pair.
- A$Cu^{2+}, Zn^{2+}$
- B$CO^{3+}, Cr^{3+}$
- ✓$Ti ^{3+}, V ^{3+}$
- D$Mn^{3+}, Cr^{3+}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Reaction number | [A] (min) |
[B] (min) |
Initial rate $(M s^{-1}$ |
| 1 | 0.1 | 0.1 | x |
| 2 | 0.2 | 0.1 | 2x |
| 3 | 0.1 | 0.2 | 4x |
| 4 | 0.2 | 0.2 | 8x |
The ratio of close packed atoms to tetrahedral hole in cubic packing is ____________.