Question

Phenolphthalein is_______________ indicator​

Answer 1

Answer:

A natural indicator is obtained from natural sources while synthetic indicators are man made and do not occur in nature. Litmus is a natural indicator which is extracted from a type of plant called lichen. ... Methyl orange and phenolphthalein are synthetic indicators and are prepared in laboratory

Answer 2

$\huge{\underline{\underline {\mathtt{\purple{A}\pink{N}\green{S}\blue{W}\red{E}\orange{R}}}}}$

Phenolphthalein is $\Large\bold\purple{synthetic}$ indicator.

$\huge\fbox\blue{Reason}$

Phenolphthalein [3,3-Bis (4- hydroxyphenyl)- 2 benzofuran- 1-one] is a synthetic indicator .Often used as an indicator in acid-base titrations. It turns colourless in acidic solutions and pink in basic solutions.

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