What happens to red litmus paper when it touches a household cleaner that has ammonia in it, and why?

1 Answer
Oct 31, 2016

Litmus paper will turn blue.


If we look at Ammonia, its chemical formula is #NH_3#. When it is dissolved in water, it accepts protons from water. Therefore, it is a base. Since litmus paper turns blue in a base and red in an acid, it will turn blue as it's in a base.

Hope this helps.