Green
Litmus paper turns blue in basic solution.
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.
Litmus paper is basically used to test nature of solution i.e acid or alkaline. For acid blue litmus turns to red. But for alkaline red litmus turns to blue color.
Dip the litmus paper into the solution in question. If the paper turns red, the substance is acidic. If the paper turns blue, the substance is basic. If there is no color change, then the substance is neutral.
Litmus paper turns red when exposed to an acidic solution and blue when exposed to a basic solution. Common salt (sodium chloride) is neutral, so it does not significantly change the color of litmus paper.
Litmus paper turns blue in basic solution.
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.
In a neutral solution, both red and blue litmus paper will remain unchanged in color. Red litmus paper turns blue in basic solutions, while blue litmus paper turns red in acidic solutions.
Because if you only use red litmus paper and the solution you tested kept the paper red, you would think that the solution would also make the blue litmus paper turn red too. But what if the solution was neutral? Then the blue litmus paper would stayblue instead of turn red. Thats why you need to use both blue and red litmus paper.
Litmus paper turns purple in a basic solution due to a chemical reaction with hydroxide ions in the solution. The dye in litmus paper undergoes a change in structure when it comes in contact with a base, causing it to reflect purple light.
no because if the solution is neutral the litmus paper is still in its color
Litmus paper is basically used to test nature of solution i.e acid or alkaline. For acid blue litmus turns to red. But for alkaline red litmus turns to blue color.
Dip the litmus paper into the solution in question. If the paper turns red, the substance is acidic. If the paper turns blue, the substance is basic. If there is no color change, then the substance is neutral.
Litmus paper turns red when exposed to an acidic solution and blue when exposed to a basic solution. Common salt (sodium chloride) is neutral, so it does not significantly change the color of litmus paper.
If the red litmus paper stays red, then the object tested may be either an acid or a neutral substance. The substance must be tested on blue litmus paper. if the blue paper stays blue, then it is neutral. If it turns red, then it is an acid.
Litmus paper is blue when dipped in an alkaline solution, and red when placed in an acidic solution. The colors begin to merge when you test pH neutral liquids.
Blue litmus paper stays blue in a neutral solution. It turns red only when in an acidic solution. Similarly, red litmus paper would stay red in a neutral solution and turn blue in an alkaline solution. Added: acidic: pH below 5.5 it turns (stays) red alkaline: pH above 8.0 it turns (stays) blue neutral, in between 5.5 and 8.0: its color is purple, between 'red and blue' or 'blue and red' A much better indicator paper is universal indicator paper. It is yellow and can tell you the exact pH of the solution it is dipped in, going yellow to red in acidic conditions, blue to purple in alkaline conditions and green in neutral conditions. The exact colour depends on the pH.