Question

Structural change in phenolphthalein and methyl orange in acidic and basic solution

Answer 1

Base changes colourless phenolphthalein into pink colour while acid gives no change.

Acid turns orange colour of methyl orange red while base gives no change.

hope it helps:)

Answer 2

Answer:

Phenolphthalein:

Colour in acidic solution: Colourless

Colour in basic solution: Pink

Methyl orange:

Colour in acidic solution: Red

Colour in basic solution: Yellow