Toluol is converted to the benzoic acid under the following conditions: {# "img":"ra8wxgs2dzrj54xlyh0iahh4g.png", "alt":"Option","whb":"274:124:" #}

Answer options

1. Sodium hydroxide action at a room temperature
2. Hydrogen peroxide action at a room temperature
3. Boiling in the open air
4. Heating with sulphuric acid
5. Oxidation with potassium permanganate