indicators Flashcards by Archie Michael

Q

colours for universal

A

red for acid
green for neutral
purple for alkali

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Q

colours for litmus paper

A

red is acid
purple is neutral
blue as alkali

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Q

colours of phenolphthalein

A

colourless in acidic to bright pink in alkaline

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Q

colours of methyl orange

A

red if acidic
yellow if alkali

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