A solution changes the colour of turmeric paper from yellow to red. The solution is:

basic

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acidic

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neutral

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either neutral or acidic

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Solution

The correct option is C basic
Turmeric can be used as a natural indicator. Turmeric paper is made by applying turmeric paste to blotting paper. It changes its colour to bright red in basic solutions.

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Question 8

A solution changes the colour of turmeric indicator from yellow to red. The solution is
(a) basic
(b) acidic
(c) neutral
(d) either neutral or acidic

(a) What is an indicator ? Name the three common indicators.

(b) Name an acid-base indicator extracted from lichen.

What happens when [5 MARKS]

a) A red litmus paper is dipped in a solution of calcium hydroxide.

b) A red litmus paper is dipped in a solution of sodium chloride.

c) A blue litmus paper is dipped in lemon juice.

d) A red litmus paper is dipped in distilled water.

e) A solution of sodium hydroxide is added to turmeric.

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