Question

15 synthetic indicators

Answer 1

.PHENOLPHTHALEIN :Its original colour is colourless. Phenolphthalein is colourless in acidic medium and pink in basic medium.

2.METHYL ORANGE : Its original colour is orange. Methyl orange is red in acidic medium and yellow in basic medium.

-Litmus. 2-methyl orange. 3-phenolphthalein. 4-phenolphthalein. 5-methyl blue