What is universal indicator?
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Answer:
a substance that changes to different colours according to whether another substance that touches it is an acid or an alkali
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Explanation:
a substance that changes to different colours according to whether another substance that touches it is an acid or an alkali
अम्ल या क्षार के संयोग से तदनुकूल रंग बदलने वाला पदार्थ; युनिवर्सल इंडिकेटर
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