What is the effect of ammonia on wet red litmus paper?
Blue
No colour change
Pink
Purple
Ammonia is alkaline in nature. Hence when red litmus paper is dipped in ammonia it changes the colour of the litmus to blue.
Out of the following options, select all the compounds that can change the colour of wet blue litmus paper into the red colour?
What will be the colour change on adding common salt dissolved in water to red litmus paper as well as blue litmus paper?