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| Q. |
Which of the following substance is used to decrease knocking in diesel fuel? |
| A. | tetra ethyl lead |
| B. | benzene |
| C. | sodium hydroxide |
| D. | acetone peroxide |
| Answer» D. acetone peroxide | |
| Explanation: the knocking in diesel fuel can be reduced by adding substances like ethyl nitrite, ethyl nitrate, isoamyl nitrate etc. this process also increases the cetane number of diesel fuel. | |
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