Question

Q11. What is the colour of the following indicators in (a)Neutral (b)Acidic (c)Basic
solution?
(i)Red litmus (ii)Blue litmus (iii)Phenolphthalein (iv)Turmeric solution​

Answer 1

Colour of litmus paper in acid: Blue litmus paper turns into red when dipped in acidic solution. Colour of litmus paper in base: Red litmus paper turns into blue when dipped in basic solution. Turmeric: Turmeric is also used as natural indicator. Turmeric is of yellow colour

Answer 2

Answer:

a) Neutral: All the indicators will not show any change in colour.

b) Acidic: will not affect Red litmus,phenolphthalein and turmeric and turns Blue litmus red.

c) Basic: turns red litmus blue but do not affect blue litmus, turns phenolphthalein deep pink and turns turmeric reddish brown.

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