7
Show how each of the following compounds can be
converted to benzoic acid (i)
Ethylbenzene
(ii)
Acetophenone
(iii)
Bromobenzene
(iv)
Phenylethene (Styrene)
Solution
Solution
Solution
Solution
Solution
(i)
(ii)
(iii)
(iv)
(v)
(vi)
Rationalised 2023-24
249
Aldehydes, Ketones and Carboxylic Acids
Aliphatic carboxylic acids upto nine carbon atoms are colourless
liquids at room temperature with unpleasant odours The higher
acids are wax like solids and are practically odourless due
to their low volatility Carboxylic acids are higher boiling
liquids than aldehydes, ketones and even alcohols of
comparable molecular masses