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By phenophthalein and methyl orange how to came we know that it is acid or base

Posted by Deepanshu Vashist 6 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Chahat Singh 6 years, 6 months ago

Phenolphthalein - It gives pink or red colour in basic medium but it is colourless in acidic medium. Methyl orange - It gives red colour in acidic medium and yellow colour in basic medium.

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