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Effect on Indicators by Acids and Bases

P and Q are a...

Question

P and Q are aqueous solutions of sodium chloride and sodium hydroxide respectively, Which of these will turn blue litmus red and which trrns red litmus blue

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Solution

The solution P i.e. sodium chloride is neutral in nature and thus it will have no effect on litmus paper.
The solution Q i.e. sodium hydroxide is a strong base thus it will turn red litmus paper blue.

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