Red litmus paper turns blue when exposed to a base while blue litmus paper turns red when the exposed to an acid. Neutral substances do not change the color of litmus paper. -Delisle, Sandy.
Also know, what color does red litmus paper turn in an Base?
Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.
What color does red litmus paper turn in neutral?
Litmus indicator solution turns red in acidic solutions and blue in alkaline solutions - and it turns purple in neutral solutions. Litmus paper is usually more reliable, and comes as red litmus paper and blue litmus paper. The table shows the colour changes it can make.
What color does litmus paper turn in a solution of baking soda?
Litmus paper has a mixture of different dyes in it. (Interestingly, the dyes are often taken from lichens.) The paper is then placed in a solution, and will turn blue if it is basic or red if it is acidic. If it does not change color, it is fairly neutral (pH in the 5-8 range).