Solution

1. As $$+I$$ groups are attached to a carboxylic acid, the acidic nature decreases.

2. As the size of $$+I$$ groups increases, the acidity decreases proportionally. Whereas the $$-I$$ groups enhance the acidity.

3. As in alcohols, the acidity is dependent on the same factors in the same way but compared to carboxylic acids, alcohols are less acidic due to their weak alkoxide ion $$(RO-)$$.

4. As the aromatic groups are connected, the acidic nature is enhanced due to resonance. So an aromatic carboxylic acid is more acidic than its aliphatic counterpart.

5. The order of acidity therefore is,

$$C_6H_5CH_2COOH > FCH_2COOH > ClCH_2COOH > CH_3COOH > CH_3CH_2OH$$