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Class 10 Science Medium Mcq English Medium

Which of the following is a synthetic indicator

Question
Which of the following is a synthetic indicator
Litmus
Turmeric
Phenolphthalein
China rose extract
Answer
Phenolphthalein
Detailed Explanation
Phenolphthalein and methyl orange are synthetic indicators, unlike litmus and turmeric which are natural.
Litmus, the natural indicator, is extracted from Science · Acids, Bases and Salts Turmeric, a natural indicator, turns which colour in the presence of a base Science · Acids, Bases and Salts Blue litmus paper turns which colour in an acid Science · Acids, Bases and Salts Red litmus paper turns which colour in a base Science · Acids, Bases and Salts

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