Explain: a. Propanol on oxidation with acidic K_(2)Cr_(2)O_(7) can give propanal although in poor yield. b. Acid chloride (RCOCl) with R_(2)Cd and R_(2)CuLi gives ketone but with Grignard reagent (RMgX) gives 3^(@) alcohol. c. R_(2)Cd or R_(2)CuLi reacts with less reactive acid chloride but not with more reactive ketones.

Explain: a. Propanol on oxidation with acidic K_(2)Cr_(2)O_(7) can gi

1.	Explain: a. Propanol on oxidation with acidic K_(2)Cr_(2)O_(7) can give propanal although in poor yield. b. Acid chloride (RCOCl) with R_(2)Cd and R_(2)CuLi gives ketone but with Grignard reagent (RMgX) gives 3^(@) alcohol. c. R_(2)Cd or R_(2)CuLi reacts with less reactive acid chloride but not with more reactive ketones.
Answer» Solution :a. If the ALDEHYDE is more VOLATILE than the REACTANT alcohol and `H_(2)O`, it can be removed from the reaction mixture by fractional DISTILLATION as it is formed. Boiling point of propanal is `49^(@)C` and that of propanol is `97^(@)C`. So propanol on OXIDATION with acidic `K_(2)Cr_(2)O_(7)` first gives propanal. As it is formed, it is removed by distillation (less boiling point, `49^(@)C`) before it is converted to propanoic acid. b. N/A. c. N/A