| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| preparation of oxygen gas | 1.71 | 0.4 | 7276 | 5 | 25 |
| preparation | 1.18 | 0.7 | 1972 | 71 | 11 |
| of | 1.24 | 0.6 | 6342 | 57 | 2 |
| oxygen | 1.87 | 0.4 | 8982 | 94 | 6 |
| gas | 0.59 | 0.5 | 1182 | 70 | 3 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| preparation of oxygen gas | 1.75 | 0.1 | 4742 | 81 |
| preparation of oxygen gas in laboratory pdf | 1.79 | 0.5 | 8816 | 88 |
| laboratory preparation of oxygen gas | 0.43 | 0.3 | 9042 | 91 |
| oxygen gas formula and preparation | 1.86 | 0.2 | 5663 | 20 |
| preparation of dry oxygen gas | 0.33 | 0.7 | 7398 | 37 |
| lab preparation of oxygen gas | 0.78 | 0.4 | 6977 | 7 |
| define preparation of oxygen | 1.47 | 0.7 | 9459 | 99 |
| methods of preparing oxygen | 0.53 | 0.6 | 7105 | 57 |
| preparation of oxygen in laboratory | 0.25 | 0.2 | 5366 | 6 |
| lab preparation of oxygen | 0.81 | 0.9 | 1288 | 57 |
| how to prepare oxygen | 0.83 | 0.3 | 9966 | 45 |
| industrial preparation of oxygen | 1.11 | 0.4 | 7787 | 4 |
| how is oxygen prepared | 1.42 | 0.4 | 9337 | 10 |
| preparation of carbon dioxide gas | 1.89 | 0.1 | 6948 | 22 |
| image of oxygen preparation | 0.46 | 0.8 | 4621 | 17 |
| how to make oxygen gas | 1.66 | 0.6 | 7906 | 28 |
| preparation of co2 gas | 1.2 | 0.2 | 9567 | 23 |
| preparation of hydrogen gas | 0.37 | 0.7 | 9627 | 32 |
| preparation of oxygen from hydrogen peroxide | 1.71 | 0.6 | 9364 | 77 |
| how to write oxygen gas | 0.44 | 1 | 6206 | 31 |
| how to prepare oxygen locally | 0.48 | 0.4 | 4214 | 2 |
| process that require oxygen | 0.26 | 0.4 | 4378 | 84 |
