If ionic product of water is $K_{w} = 10^{- 16}$ at $4^{o} C$ , then a solution with $p H = 7.5$ at $4^{o} C$ will :

Turn blue litmus red

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Turn red litmus blue

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Turn turmeric paper brown

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Be neutral to litmus

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Solution

The correct option is A Turn blue litmus red
If $K_{w} = 10^{- 16}$ then solution will be neutral at $p H = 8$ so solution with $p H = 7.5$ will be acidic and turn blue litmus to red.

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Similar questions

K_{w} = 10^{- 16}

4^{o} C

p H = 7.5

4^{o} C

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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