cbse-class-11-chemis
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Explain why graphite is used as lubricant and diamond is used as abrasive? |
|
1 | 2190 | June 28, 2019 |
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Explain why graphite is used as lubricant and diamond is used as abrasive? |
|
1 | 2190 | June 28, 2019 |