Question

synthetic indicator is ___________​

Answer 1

Answer:

Synthetic indicators are indicators which are synthesized in the laboratory.

Explanation:

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Answer 2

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Litmus: Litmus solution is a purple dye extracted from lichen, a plant belonging to the division thallophyta. Its colour is red in acidic solution, blue in alkaline solution and purple in neutral solution. A blue litmus paper turns red when it is dipped in acidic solution, it won't change its colour in the basic solution. A red litmus changes into blue when dipped in basic solution and doesn't change colour in acidic solutions.