there natural color it did not change their color
The natural color of litmus paper is purple. It turns red in acidic solutions and blue in basic solutions.
Litmus is a natural dye that changes color in response to acidity. When litmus is blue, it indicates the substance is basic (pH greater than 7). When litmus turns red, it signifies the substance is acidic (pH less than 7).
In a neutral solution litmus has a purple color.
Methanol is a neutral substance and typically does not change the color of litmus paper. Litmus paper changes color in the presence of acidic or alkaline substances.
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Litmus paper will turn red when dipped in HI (hydroiodic acid) solution.
litmus is a natural indicator because it is obtained from a natural source e.g. lichens mainly roccella tinctoria.it is not synthesized in the laboratory.
Color of litmus will change.Red litmus will change into blue.
The color of litmus paper in acidic solutions is red.
an acid turns the litmus paper red.
Acid: Red litmus