Question

Name the synthetic indicator which are used to test acid and Base

Answer 1

Phenolphthalein is a synthetic indicator which is used to test acid and base.

Answer 2

methyl orange and  Phenolphthalein 

methyl orange and  Phenolphthalein  are the  two synthetic indicators which are used to test acids and bases

Phenolphthalein 

●in acid -- colourless
●in base -- pink

methyl orange

●in acid --- orange
●in base --- yellow

@skb