Which of the following are used as an indicator for identifying acids and bases:
All are examples of indicators.
Litmus is a natural indicator, turmeric is anaother such indicator.
And methyl orange is a synthetic indicator.
The indicators which turn red in acid solution are :
(a) turmeric and litmus
(b) phenolphthalein and methyl orange
(c) litmus and methyl orange
(d) phenolphthalein and litmus