Litmus solution is a purple dye extracted from lichen, a plant belonging to the division Thallophyta.

When metal carbonates and hydrogencarbonates react with acids, they produce a corresponding salt, carbon dioxide gas, and water.

Examples of different forms of calcium carbonate include limestone, chalk, and marble.

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.

Methyl orange turns red in acidic solutions and yellow in basic solutions, while phenolphthalein is colorless in acidic solutions and pink in basic solutions. By observing the color changes of these indicators when added to a solution, one can determine ...