Understanding Litmus as an Indicator

What is litmus paper used for?

• Litmus paper is used to test pH levels of solutions.

• To determine the color of a solution.

• To measure temperature of liquids.

• To filter impurities from water.

What color does litmus paper turn in acidic solutions?

• Red

• Yellow

• Green

• Blue

What color does litmus paper turn in basic solutions?

• Blue

• Yellow

• Red

• Green

How can litmus paper be used to determine pH?

• Litmus paper is used to filter out impurities in a solution.

• Litmus paper changes color to indicate if a solution is acidic, basic, or neutral.

• Litmus paper measures temperature to determine pH.

• Litmus paper can only test for neutral solutions.

Why is litmus considered a natural indicator?

• Litmus is derived from minerals and not natural sources.

• Litmus is synthetic and made from chemicals.

• Litmus is considered a natural indicator because it is derived from natural lichens and changes color based on pH levels.

• Litmus does not change color with pH levels.