Name the source from which litmus solution is obtained . What is the use of this solution ?
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litmus paper is obtained from lichens and it is used to check wether an object is an acid or a base
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The the most commonly used natural indicator is litmus. it is excreted from lichens. it has a purple colour in distilled water. When added to an acidic solution it turns red and when added to a basic solution it turns blue. It is available in the from of a solution or in the form of strips of paper, known as litmus paper. Generally, it is available as red and blue litmus paper.
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