effect when red litmus paper dropped in water
none
litmus papers test for acids or bases.
Better review the topic.
lol. The paper gets wet.
When red litmus paper is dropped in water, it will remain red or may slightly bleach out. This is because red litmus paper is primarily used as an indicator for testing if a solution is acidic or basic.
Litmus paper contains a mixture of dyes extracted from lichens, which change color in response to changes in the acidity or alkalinity (basicity) of a solution. In the case of red litmus paper, it turns blue in the presence of a basic solution (pH greater than 7) and remains red in the presence of an acidic solution (pH less than 7).
Since water is considered neutral with a pH of 7, it does not significantly affect the color of the red litmus paper. If the litmus paper slightly bleaches out, it might be due to impurities or contaminants present in the water. However, this is not a reliable way to determine water purity or pH levels.
To accurately test the pH of a solution using litmus paper, you would typically dip the paper into the solution and observe the color change. If the red litmus paper turns blue, it indicates the solution is basic, while if it remains red, it signifies the solution is acidic.