Litmus turns pink in acid solutions like citric acid...blue in basic solutions.
As the citric acid is acidic in nature and blue litmus is an indicator, Citric acid turns red litmus blue.
The lemon juice contain citric acid and is acidic - the color is red.
Litmus paper turn to red color.
Red color in acidic solutions and blue color in basic solutions.
The color turn on blue.
The water solution of iodine turn blue litmus paper to red.
The paper turn on blue.
It would remain red, red litmus paper only reacts to blue in the presence of a base. Lemon juice is acidic and thus wouldn't turn the paper a color. If blue litmus paper was used in the lemon juice it would turn red. Consequently dipping blue litmus paper in a base won't change the color because it does not react with bases, only acids.
Litmus paper turn to red color.
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.
In a neutral solution litmus has a purple color.
The color of litmus paper in acidic solutions is red.
Red color in acidic solutions and blue color in basic solutions.
blue
Coffee has an acidic pH - red with litmus paper.
I believe, that acid makes blue litmus paper turn red.
The color turn on blue.
The litmus paper will turn red.
Acid: Red litmus