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When blue litmus paper touches an acid it becomes red. This is the type of litmus paper that detects acids.

When red litmus paper touches an acid, it will remain red. This is used to test a base.

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Q: What happens to litmus paper touches an acid?
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Related questions

What color does Litmus Paper turn when it touches an acid?

When an acid touches Litmus paper it turns red (pink).


What color does litmus paper change if base or paper?

When litmus paper touches an acid, the paper changes to red. When it touches a base, the paper changes to blue. By comparing the color the litmus paper changed to by a chart, you could determine how strong or weak that acid or base is.


What happens when a BLUE litmus paper is dipped in an acid?

Blue litmus paper turns RED in an acid. Red litmus paper turns BLUE in a base.


What happens to red litmus paper when it is placed in an acid?

Nothing - red litmus paper indicates the presence of bases.


What happens if hydrochloric acid is experimented on red litmus paper?

Red litmus paper is used for alkaline solutions.


What happens to blue litmus paper in an acid?

it turns red


Which litmus paper do you use to identify an acid and how does it react?

Online science class does not mean you can just google for answers. Read your textbook!


What happens when blue litmus paper is dipped in dilute nitric acid?

this is a fun expierement cuz it will turn the blue litmus paper into red litmus paper!


What happens to red litmus paper when it touches vinegar?

If you add red litmus paper and it remains red, then you add blue litmus paper and it remains blue, then the the solution is neutral. Kamal


Will an acid turn litmus paper green?

Acid will turn litmus paper red.


What happens when you put red litmus paper in a basic acid?

turns acidic


What happens to red litmus paper if dipped in vineger?

Sour milk is acidic. Red litmus paper should not change.The sour part of sour milk is lactic acid. As litmus paper turns red when exposed to acidic compounds, litmus paper that is already red should not react when exposed to lactic acid.