an acid turns the litmus paper red.
Litmus paper is basically used to test nature of solution i.e acid or alkaline. For acid blue litmus turns to red. But for alkaline red litmus turns to blue color.
Litmus paper turns blue in a base. Litmus is a pH indicator that changes color depending on the acidity or alkalinity of a solution.
If the solution contains acid, then the alkali turns the litmus to its original colour(blue).The color is effected by the concentration of the acid and the alkali.
Litmus paper is an indicator that changes color in acid and alkali solutions. In an acid solution, litmus paper turns red, while in an alkali solution, it turns blue.
The color is purple in a neutral solution.
Red litmus solution would turn blue if dipped in phosphoric acid, because phosphoric acid is acidic and will cause the litmus paper to change color from red to blue.
Nothing, red litmus paper changes in the presence of an acid not a base, blue litmus paper turns red with nitric acid
the litmus paper turns red when in contact with phosphoric acid
just put a drop of solution on blue litmus paper. if litmus turn in to red color then solution is acid otherwise it is base .
Blue litmus paper turns RED in an acid. Red litmus paper turns BLUE in a base.
In acid solution, blue colour of litmus is changed into red. In basic sol litmus change to blue.
Acid: Red litmus