Question

name the most commonly used indicator and its reaction with acid and base​

Answer 1

Answer:

red litmus or blue litmus or turmeric powder

Explanation:

the turmeric powder and red blue litmus are universal indicators

Answer 2

most commonly used indicator is litmus paper...

acids turn moist blue litmus red

bases turn moist red litmus blue

other indicators could be

1. turmeric
2. phenolphthalein
3. methyl orange
4. olfactory indicators like vanilla essence and clove

Hope it helps