Question

what is litmus?how is it used as an acid or base indicator
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Answer 1

Explanation:

litmus is used to identify a substance whether it is acidic or basic in nature..here are mainly two types of litmus made from barks of some specific plants..mainly blue and red litmus.blue litmus turns red if acid.and red litmus turns blue when basic.

Answer 2

❁Required Answer :

Litmus is the most common natural indicator. it is extracted from lichens. Litmus is used to identify whether the given solution is acid or base. Acording to litmus solution Acid turns blue to red and bases turns blue to red. The netural litmus paper is purple .

More indicators.

1. Turmeric : It turns yellow to red in basic solution
2. China rose indicator : it turns dark pink in acidic solution and green in basic solution.

$synthetic \: indicator = methyl \: and \: phenolphthalein$