The substance that changes the colour of red litmus paper into blue colour A. sodium chloride solution B. lemon juice C. pure water D. sodium hydroxide solution
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The substance that changes the colour of red litmus paper into blue colour A. sodium chloride solution B. lemon juice C. pure water D. sodium hydroxide solution
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Explanation:
Alkali is a base; therefore, it will turn a red litmus paper blue ie d sodium hydroxide solution .
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