Search results
- DictionaryLit·mus test/ˈlitməs ˌtest/
noun
- 1. a test for acidity or alkalinity using litmus.
Powered by Oxford Languages
Definition of litmus test noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
People also ask
How does a litmus test work?
What does the term 'litmus' mean?
What is a blue litmus test?
A scientific litmus test can tell you the pH of a gas or liquid — in other words, it shows exactly how acidic the substance is. A litmus test uses litmus paper to test the substance; it turns red if it's acidic and blue if it's alkaline, or basic.
Litmus test. Litmus is a substance, made of lichen-based dyes, that is absorbed in paper and used to test acidity. Blue litmus turns red when exposed to acidic materials, and red litmus turns blue when exposed to nonacidic materials.
- Method
- Tips
- Warnings
Pour an aqueous sample. Pour some of your sample from its original container into a glass or beaker. This way, you will not contaminate the rest of the sample by dipping the litmus paper. Make sure that the sample you choose is aqueous (dissolved in water), otherwise the litmus test will not work.[1] X Research source For example, orange juice is comprised primarily of water. A litmus test ...Test for alkalinity. Dip a piece of red litmus paper into the liquid. If the paper turns blue, your liquid is a base (pH > 7). If the paper stays red, your liquid is not a base.[2] X Research source Ruling out a base does not definitively tell you that the liquid is an acid (pH < 7). It could also be neutral (pH = 7).Test for acidity. Dip a piece of blue litmus paper into the liquid. If the paper turns red, the liquid is an acid. If the paper remains blue, the liquid is either a base or is neutral.[3] X Research sourceAnalyze both papers. By using both tests, you can determine if the liquid is an acid, a base, or neutral. To do this, you have to analyze how each paper reacted to the liquid. For example: Base - Red paper turns blue. Blue paper does not change. Acid - Red paper does not change. Blue paper turns red. Neutral - Red paper does not change. Blue paper does not change.For more accurate results, you can make your own pH indicator. Thanks Helpful 0 Not Helpful 0Some gases are poisonous if inhaled. You should test pH under a fume hood. Thanks Helpful 3 Not Helpful 0Some gases are corrosive to the skin and eyes. You should wear a goggles and gloves when handling corrosive gases. Thanks Helpful 3 Not Helpful 1- 52.1K
The meaning of LITMUS TEST is a test in which a single factor (such as an attitude, event, or fact) is decisive. How to use litmus test in a sentence. Litmus Test Has Scientific Origins.
Definition of litmus test. as in challenge. something (such as an opinion about a political or moral issue) that is used to make a judgment about whether someone or something is acceptable The party is using attitudes about gun control as a litmus test for political candidates. Synonyms & Similar Words. Relevance.
1. litmus test - a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator. acid-base indicator - an indicator that changes color on going from acidic to basic solutions. litmus paper - unsized paper treated with litmus for use as an acid-base indicator. 2.
