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CMC Medical CMC-Medical VELLORE Solved Paper-2010

  • question_answer
    The colour of blue glass is due to the presence of oxide of

    A)  Cr                                          

    B)  Co

    C)  Au                                        

    D)  Ag

    E)  None of these

    Correct Answer: B

    Solution :

                    The colour of the glass is blue due to the presence of oxide of \[Co\] i.e., \[CoO\cdot A{{l}_{2}}{{O}_{3}}\](Thenards blue).


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