For one to test whether a soft drink is acidic,neutral or basic, You would have to first know the pH of the drink. Mehtyl orange and phenolphthalene when used in the soft drink will give a precise colour.
think its acidic
Carbonated soft drinks are acidic, as they mostly contain small amounts of carbonic acid and even maybe phosphoric acid.
Technically... Soft Drinks are already acidic so... What are you talking about?
It's basic
Acidic due to citric acid