Question

Name four substances that can serve as indicators.

Answer 1

Blackberries, black currants, and black raspberries change from red in acids to dark blue or violet in basic solution.
Cherries and cherry juice is bright red in acidic solution but purple to blue in basic solution

Answer 2

Blackberries, black currants, and black raspberries change from red in acids to dark blue or violet in basic solution.
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