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    Question

    A solution turns blue litmus red, its PH is likely to

    be?
    A 5 Correct Answer Incorrect Answer
    B 8 Correct Answer Incorrect Answer
    C 9 Correct Answer Incorrect Answer
    D 11 Correct Answer Incorrect Answer

    Solution

    Litmus paper is used as an indicator of acids or bases. There are two types of litmus papers present – blue and red. A blue litmus paper when dipped in acid turns red in color and remains blue in basic medium. However, a red litmus paper when dipped in a base turns blue in color and remains red in acidic medium/ solution. Hence, it can be determined whether a solution is acidic or basic with the use of litmus paper. Hence, option A is correct.

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