Q:
What color does litmus paper turn in acid?
A:
Quick Answer
When blue litmus paper is dipped in an acid, it turns red; when red litmus paper is dipped in an acid, it just appears to get wet. Alkacid paper, which is a universal indicator, turns orange or red when it is reacting to an acid, with a redder color indicating a lower pH and a stronger level of acidity.
Continue Reading
Credit:
Clive Streeter
Dorling Kindersley
Getty Images
Full Answer
It is important to use both red and blue litmus paper when testing a substance. If the substance is neutral, it just makes the red litmus paper look wet. If that same neutral substance is tested on blue litmus paper, it again makes the paper just appear wet (or a slightly darker blue) rather than turning the blue litmus paper red, as an acidic substance does.
Learn more about Acids & BasesSources:
Related Questions
-
Q:
What are examples of an acid-base indicator?
A: Some common examples of acid-base indicators include blue grapes, which can change color from deep red in an acid to violet in a base; beets, which change ... Full Answer >Filed Under: -
Q:
What are the physical properties of acids?
A: Physically, acids have a sour taste, are soluble in water, turn blue litmus paper red, are corrosive, have pH values less than 7 and conduct electricity. T... Full Answer >Filed Under: -
Q:
How do you define "weak acid"?
A: A weak acid is defined by its lower level of ionization with the surrounding solution than strong acids, meaning that it has a lower tendency to exchange p... Full Answer >Filed Under: -
Q:
Is acid bad for you?
A: Acids are not inherently dangerous or bad for the health. Ascorbic acid, or vitamin C, is important in many body processes. Very strong acids, however, are... Full Answer >Filed Under:
