Uses Of Carboxylic Acids

Paracetamol is a non-narcotic analgesic, commonly used for pain relief and fever reduction. It does not have the addictive properties associated with narcotic analgesics like morphine, codeine, or heroin. Morphine and codeine are opiates, while heroin is a stronger narcotic with addictive potential. Thus, Paracetamol is the correct non-narcotic analgesic.

The correct option is (C) : Paracetamol

The acidity of carboxylic acids is influenced by the electron-donating or withdrawing nature of substituent groups.
Electron-donating groups decrease acidity, while electron-withdrawing groups enhance acidity.
- Tertiary butanoic acid has three alkyl groups, making it the strongest acid.
- Isobutyric acid has two alkyl groups, making it less acidic than (i).
- Propionic acid has only one alkyl group, making it the least acidic.
Thus, the correct order of increasing acid strength is: