Question

........ is a natural indicator from the following
A-litmus
B- methyl orange
C- universal indicator
D- phenolphthalein
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Answer 1

$\huge \bf\red{\mid {\overline {\underline {Your \:Answer}}} \mid}$

Indicators are those substances which identify whether the given substance is acidic or basic.

Methyl Orange is a natural indicator.

Hence, correct option is :-

$\boxed {Option \:B}$

Some more natural indicators are :-

Turmeric, Litmus paper etc

Answer 2

litmus is a natural indicator