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| Q. |
How is crude oil separated? |
| A. | crystallization |
| B. | fractional distillation |
| C. | decantation |
| D. | sublimation |
| Answer» B. fractional distillation | |
| Explanation: crude oil is usually suspended on a layer of brine with a deposit of gas over it. this form is usually not preferred for any | |
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