As soap is alkaline in nature, it turns red litmus paper blue
When red litmus paper is placed in washing up liquid, it typically changes to blue. This color change occurs because washing up liquid is usually alkaline (basic), and red litmus turns blue in the presence of a base. Thus, the transition indicates the basic nature of the washing up liquid.
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When red litmus paper is dipped in ammonia, it turns blue. Ammonia is a basic (alkaline) substance, and the change in color indicates the presence of a base. This reaction happens because the ammonia raises the pH of the solution, causing the red litmus paper to change color.
When white litmus paper is dipped in potassium permanganate, it does not change color, as potassium permanganate is a neutral solution and does not affect the acidity or basicity of the litmus paper. White litmus paper is designed to indicate pH changes, turning red in acidic conditions and blue in basic conditions. Since potassium permanganate itself is not acidic or basic, the litmus paper remains unchanged.
If litmus paper is added to washing up powder, it would typically turn blue, indicating that the washing up powder is alkaline (basic). Most washing up powders contain sodium carbonate or other alkaline substances, which raise the pH and cause the blue color change in blue litmus paper. If red litmus paper is used, it would remain red, confirming the basic nature of the solution.
When red litmus paper is placed in washing up liquid, it typically changes to blue. This color change occurs because washing up liquid is usually alkaline (basic), and red litmus turns blue in the presence of a base. Thus, the transition indicates the basic nature of the washing up liquid.
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Red!
Depends on the litmus paper. Red litmus will not turn but blue litmus will turn redish pink.
The blue litmus paper will not change color. Red litmus would turn blue in the presence of ammonia. Blue litmus paper will only change color in the presence of an acid, at which point it will turn red.
Lemon juice is an acid and blue litmus paper turns red when dipped in an acidic liquid.
Red litmus solution would turn blue if dipped in phosphoric acid, because phosphoric acid is acidic and will cause the litmus paper to change color from red to blue.
Blue litmus paper turns pink when dipped into a base. This is because the color change indicates a shift in pH level from acidic to basic.
Blue litmus paper remains blue when dipped in milk of magnesia because milk of magnesia is basic in nature.
A green-y yellow.