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    4. Chemistry GS
    5. Which of the following substances will turn red litmus paper blue?

    Question

    Which of the following substances will turn red litmus

    paper blue?
    A Lemon juice Correct Answer Incorrect Answer
    B Baking soda solution Correct Answer Incorrect Answer
    C Vinegar Correct Answer Incorrect Answer
    D Hydrochloric acid Correct Answer Incorrect Answer

    Solution

    Red litmus paper turns blue in the presence of a base. Baking soda solution is basic in nature, which is why it turns red litmus paper blue.

    Practice Next
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    Relevant for Exams:

    • RRB JE

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