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Question

The most commonly used indicator in the laboratory is ___.



A

Litmus

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B

Universal Indicator

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C

Methyl Orange

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D

Phenolphthalein

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Solution

The correct option is D

Universal Indicator


The most commonly used indicator in the laboratory is universal indicator. A universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or alkalinity of solutions.


Chemistry

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