Bleach turns litmus paper blue because it is a base (pH levels 12-14)
orange
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Blue litmus paper will likely remain blue when dipped in spinach as spinach is not acidic enough to cause a color change to red.
Blue litmus paper turns RED in an acid. Red litmus paper turns BLUE in a base.
blue
When a strip of litmus paper is dipped into an acidic solution, it turns red. This is because litmus paper changes color in response to the pH of the solution it comes into contact with. In acidic solutions, the paper turns red, indicating low pH.
nothing happens - just remain the same as long as it is pure alcohol. The chemical that makes the paper change colors reacts with acids and bases - but alcohol is neither.
It stays blue.
dark green
blue
blue
blue litmus remains blue while red litmus changes to blue