Blue litmus become red in acidic solutions.
Acid turns blue litmus red.
red
The color is red.
Nothing, red litmus paper changes in the presence of an acid not a base, blue litmus paper turns red with nitric acid
Blue
Red color in acidic solutions and blue color in basic solutions.
the same color red
Red color in acidic solutions and blue color in basic solutions.
The color does not change unless an indicator such as litmus or phenolphthalein is being used. If litmus the color change is blue to red If phenolphthalein the change is red to colorless
Bluish green
There is no change, blue litmus stays blue and red litmus stays red.
An orange-ish color
In a neutral solution litmus has a purple color.