MCQ
Identify the correct decreasing order of oxidizing power.
- A$HClO_2 > HClO_3 > HClO$
- B$HClO > HClO_3 > HClO_2$
- ✓$HClO > HClO_2 > HClO_3$
- D$HClO_2 > HCIO > HClO_3$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| X | 1 | 2 | 3 | 4 |
| P(X) | `1/3` | `2/9` | `1/3` | `1/9` |
1hen, the mean of this distribution is ______
| X | 0 | 1 | 2 | 3 |
| P(X) | 2a | a | 4a | 3a |
Then, the variance of X is ______