Question

list of various natural and synthetic indicators and write colour change shown by them in acidic and basic medium

Answer 1

some of the indicators are-
litmus- purple(when neutral),red(when acid),blue(when base)
methyl orange-orange(neutral),pink(acid),yellow(base)
phenolphthalein- colourless(neutral) ,colourless(acid),pink(base)
phenolphthalein(alkaline)- pink(neutral),colourless(acid),pink(base)

Answer 2

Answer:

turmeric -yellow (neutral)yellow (acidic) red (basic)

red cabbage juice - purple (neutral) distinct red (acidic) blue (basic)

beetroot juice - red (neutral)colourless (acidic) yellow (basic)

China rose petals-pink (neutral)dark pink(acidic) green(basic)

litmus - purple(neutral) red (acidic ) blue (basic)