What color does litmus paper turn in the presence of bases?

Understand the Problem

The question is asking about the effect of bases on litmus paper, specifically what color change occurs when litmus paper comes into contact with a basic solution.

More Information

In the presence of a base, red litmus paper turns blue. Litmus paper is a simple and widely used acid-base indicator.

Tips

A common mistake is to assume that blue litmus paper changes color in a base. However, blue litmus paper remains blue in basic conditions.

Sources

• Litmus paper turns what color in the presence of a base? - Answers - answers.com
• What color does litmus paper turn when it reacts with a base? - Quora - quora.com
• The web page with info on - Wikipedia - en.wikipedia.org