What would happen when a red litmus paper is treated with a solution containing NaOH? [2 MARKS]

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Solution

Explanation: 2 Marks

Litmus paper is an indicator, when treated with a solution containing NaOH, the color of red litmus paper will change to blue as bases turn red litmus blue and NaOH is a base

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What is a litmus paper? What would happen when a red litmus paper is treated with a solution containing NaOH? [2 MARKS]

What would happen when a blue litmus paper is treated with a solution containing HNO₃? [2 MARKS]

Question 3:

What happens to Red litmus paper when added to acid and base solution?

What would you observe when :

(a) blue litmus is introduced into a solution of hydrogen chloride gas,

(b) red litmus paper is introduced into a solution of ammonia in water,

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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