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  5. Acids, Bases and Salts / अम्ल, क्षार एवं लवण

Railways General Science & Technology Acids, Bases and Salts / अम्ल, क्षार एवं लवण Sample Paper Acids and Bases Sample Test Paper-16

  • question_answer
    What is the pH of pure water?

    A)  1        

    B)  7

    C)  5                    

    D)  12

    Correct Answer: B

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