MCQ
Find out the incorrect pair :
- ABoron is $\mathrm{BF}_3-+3$
- BCarbon in $\mathrm{CO}_2{-+4}$
- CNitrogen in $\mathrm{N}_2 \mathrm{O}_5-+5$
- ✓Fluorine in $\mathrm{OF}_2-+4$
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 |
| List - I | List - II |
| A. $NaCl$ | 1. Molecular crystal |
| B. $SiO _2$ | 2. Metallic crystal |
| C. $C _6 H _{12} O _6$ | 3. Ionic crystal |
| D. Copper | 4. Covalent crystal |