COLOUR OF INDICATOR IN ACID/BASE:
Indicator | Colour in acid (pH < 7) | Colour at pH = 7 | Colour in base(pH > 7) |
Red cabbage water | Red, pink | Purple | Blue, green, yellow |
Turmeric water | Yellow | Yellow | Red |
Phenolphthalein | Colourless |
Colourless | Pink, red |
Red litmus | Red | Red | Blue |
Blue litmus | Red | Blue | Blue |
Universal indicator | Red, orange, yellow | Green | Blue, violet, purple |