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Railways Sample Paper RRB (Group D) Sample Test Paper-3

  • question_answer
    'Red Ink' is prepared from -

    A)  Phenol 

    B)  Aniline

    C)  Congo-red        

    D)  Eosin

    Correct Answer: D

    Solution :

    [d] Eosin is a dye used to prepare red ink.


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