Question
How would you convert:
- Ethanol into ethene?
- Propanol into propanoic acid?
$\text{CH}_3-\text{CH}_2\text{OH}\xrightarrow[{(\text{Dehydration})}]{{ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Cons.}\text{H}_2\text{SO}_4;170^\circ\text{C}}\ \ \ \ \ \\ \ \ \ \ \ \ \ }\text{CH}_2=\text{CH}_2+\text{H}_2\text{O}$
$\text{CH}_3\text{CH}_2\text{CH}_2\text{OH}+2[\text{O}]\xrightarrow[{\text{or}\ \text{acidified}\text{K}_2\text{Cr}_2}\text{O}_7]{{ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Alkaline}\text{KmnO}_4;\text{Heat}}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\text{CH}_3\text{CH}_2\text{COOH}+\text{H}_2\text{O}$
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| | Elements | Least atomic radius | Chemically least reactive |
| (i) | F, Cl, Br | ..................... | ..................... |
| (ii) | Li, Na, K | ..................... | ..................... |