pink
Some substances do not change the color of litmus paper because they are neither acid or nor base. They are called neutral substances.
Litmus paper or phenolphthalein.
The Blue Litmus paper will turn into Red, while the Red litmus paper will retain its color. So it only indicates that the said mixture is an acid.
There are different types of Litmus paper and so the exact color may differ for each of these types. Also, water itself is neutral when pure but most tap water is slightly basic so it depends on what you use. Some types of Litmus paper will not change color in pure water (such as the 1-12 pH yellow litmus paper), others will turn a purple color as an indication of the solution being not an acid (red) or a base (blue).
as rain water is slightly acidic so will turn the blue litmus paper a little red.
It is
water
Some substances do not change the color of litmus paper because they are neither acid or nor base. They are called neutral substances.
The water solution of iodine turn blue litmus paper to red.
THE COLOUR of the litmus paper will not change as a salt solution is neutral
water.
Litmus paper or phenolphthalein.
blue
The litmus paper changes to green because water has a neutral pH (7) andgreen is the neutral color.
dark green
If it is pure water, it doesn't change.
The Blue Litmus paper will turn into Red, while the Red litmus paper will retain its color. So it only indicates that the said mixture is an acid.