Blue litmus does not change when placed in a basic solution.
Red litmus paper is used to test for acids. If the red litmus paper turns blue when dipped in a substance, it indicates the presence of an acid.
Red litmus paper will stay red when placed in hot water, as it only changes color in the presence of acids. If the hot water is acidic, then the red litmus paper will turn blue.
Sour milk is acidic. Red litmus paper should not change.The sour part of sour milk is lactic acid. As litmus paper turns red when exposed to acidic compounds, litmus paper that is already red should not react when exposed to lactic acid.
Red litmus paper remains red when dipped in water. Litmus paper is used to test for acidity or basicity, and red litmus paper turns blue in basic solutions. If the water being tested is neither acidic nor basic, the red litmus paper will not change color.
if iodide vapour is passed through wet litmus paper it turns red.
litmus paper nutral
Nothing - red litmus paper indicates the presence of bases.
Red litmus paper is used for alkaline solutions.
Blue litmus paper turns RED in an acid. Red litmus paper turns BLUE in a base.
The colors of litmus is different; this depends on the pH.
Red litmus paper remains red when a neutral solution is added. This is because neutral solutions do not affect the color of red litmus paper.
Nothing particularly happens.
It turns blue
Blue litmus does not change when placed in a basic solution.
When blue litmus paper touches an acid it becomes red. This is the type of litmus paper that detects acids. When red litmus paper touches an acid, it will remain red. This is used to test a base.
Blue litmus paper will turn red when dipped in dilute nitric acid. This color change indicates that the solution is acidic. Nitric acid is a strong acid and will donate protons to the litmus paper, causing the color change.