Blue
Litmus paper turns blue in a base.
the red litmus paper turns to blue
Blue litmus paper turns red in a base.
When a base is added to red litmus paper, the indicator turns blue. This is because red litmus paper is used to indicate acidic conditions, so a base would cause the paper to change color to blue.
It turns blue because it's a base. If it was a acid then it will turn red.
this is very easy to understand if u place red litmus paper in a acid it turns red/pink. if u place red litmus paper in a base it turns blue. blue litmus paper in a acid turns pink/red. blue litmus paper in a base stays blue.
When litmus paper touches an acid, the paper changes to red. When it touches a base, the paper changes to blue. By comparing the color the litmus paper changed to by a chart, you could determine how strong or weak that acid or base is.
Ammonia turns red litmus paper blue, but does not have any effect on blue litmus parer, since it is a base.
Litmus paper turns blue in a base. Litmus is a pH indicator that changes color depending on the acidity or alkalinity of a solution.
A base/alkali substance will turn litmus paper blue.
Blue litmus turns red in the presence of an acid. The opposite is correct in case of a base ie in presence of a base, red litmus turns blue in colour.
Blue. It also depends on the pH of the base, but it is generally blue.