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InterviewSolution
| 1. |
A polyhydroxy alcohol having molecular weight =168. On acetylation the molecular weight increases to 294. Determine the number of -OH groups present in the alcohol. |
Answer» SOLUTION : So when one -OH group is replaced by acetyl group MOLECULAR weight increases by `59-17=42`. Here TOTAL increase in molecular weight `294-168=126` So number of `-OH` groups `=(126)/(42)=3`. |
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