A red litmus paper will turn blue when dipped into a basic solution. This color change occurs because the basic solution reacts with the red litmus, causing it to gain electrons and change color to blue.
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A red litmus paper will turn blue when dipped into a basic solution. This color change occurs because the basic solution reacts with the red litmus, causing it to gain electrons and change color to blue.
When red litmus paper is dipped into a basic solution, it turns blue. Litmus paper is a pH indicator that changes color based on the acidity or basicity of a solution. Red litmus paper is red in acidic solutions but turns blue in basic or alkaline solutions. This color change is due to the reaction of the litmus dye with hydroxide ions (OH-) in the basic solution. The hydroxide ions react with the dye, causing it to gain electrons and change color. Therefore, the blue color observed indicates the presence of a base in the solution.