📝 Multiple Choice Question
General-science
Which of the following is a natural indicator for acid and base?
A
Phenolphthalein
B
Turmeric
C
Methyl orange
D
Universal indicator
Explanation
Turmeric is a naturally occurring acid-base indicator that famously changes from yellow in acidic and neutral solutions to bright red in basic solutions. Other common natural indicators utilized historically before synthetic chemicals include litmus (extracted from lichens) and red cabbage juice.
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