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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-3

  • question_answer
    When iron nail is placed in copper sulphate solution, the bluish colour of copper sulphate turns

    A)  Brownish         

    B)  yellowish

    C)  Greenish          

    D)  colourless

    Correct Answer: D

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