The litmus papers are used for checking the acidic and basic nature of any substance. That's why drop of lemon juice, which is by nature acidic, turns blue litmus into red(as the property of acidic solution is to change the color of blue litmus to red). So soap solution which is by nature basic will turn red litmus into blue (as the property of basic solution is to change the color of red litmus to blue).
Soap is typically basic in nature, so when it comes into contact with blue litmus paper, it can turn the paper from blue to red. This color change occurs because the soap's alkaline properties react with the litmus dye, causing it to change color.
Litmus turns pink in acid solutions like citric acid...blue in basic solutions.
Soap does not turn water blue. It is likely that a blue-tinted soap was used, or that the soap contained a dye or pigment that resulted in the blue color when dissolved in the water.
"Soap" is a little vague, but most soaps are somewhat alkaline and if I were forced to bet on what would happen I would guess that the litmus would turn blue again. However, depending on the kind of soap, it might do nothing except get it wet and soapy.
pink
soap is basic therfore, soap solution will keep blue litmus paper blue and turn red litmus paper 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.
The litmus papers are used for checking the acidic and basic nature of any substance. That's why drop of lemon juice, which is by nature acidic, turns blue litmus into red(as the property of acidic solution is to change the color of blue litmus to red). So soap solution which is by nature basic will turn red litmus into blue (as the property of basic solution is to change the color of red litmus to blue).
Soap is typically basic in nature, so when it comes into contact with blue litmus paper, it can turn the paper from blue to red. This color change occurs because the soap's alkaline properties react with the litmus dye, causing it to change color.
If blue litmus paper is dipped in a soap solution, it is likely to turn red. This change in color indicates that the soap solution is likely acidic in nature.
This depends on the soup, but bases are not usually found in our food, and it is more likely to add lemon juice that soap to you soup, so..it will mostly turn blue LP into red
Soap powder typically turns a pH indicator such as litmus paper to blue or purple, indicating that it is basic or alkaline in nature.
When red litmus paper is added to soap solution, it will turn blue. This indicates that the soap solution is alkaline in nature, as alkaline substances turn red litmus blue. This is because soap solutions typically have a pH above 7.
Bases turn pH paper blue or purple in color.
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.
blue