Question

20 types of acid and base check indicators

Answer 1

Litmus paper
litmus solution
pH scale
Phenolphthalein
Red cabbage juice

Answer 2

Litmus paper
Universal indicator
Phenolpthalein
Red cabbage extract
Onion
Vanilla
Turmeric
Methyl orange
Methyl red
Thymol blue
Rose petals
Petunia petals
Bromothymol blue
Methyl violet
Alizarin yellow
Thymolphthalein
Bromocresol green
Chlorophenol red
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