From red to blue .
Alkali turns litmus paper blue.
red
it turns blue litmus paper red
will turn red litmus blue,
Litmus become blue in contact with basic substances.
Litmus paper will turn blue in the presence of potassium hydroxide, indicating a basic solution.
It turns greenLOL
BLUE
Depends on the litmus paper. Red litmus will not turn but blue litmus will turn redish pink.
Acid can't turn red litmus paperbur base canturn it blue .
Litmus will turn blue in ammonia due to its alkaline/basic nature.
blue