JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Compounds of Transitional Elements

  • question_answer
    When hypo solution is added to cupric sulphate solution, the blue colour of the latter is discharged, due to formation of

    A) \[Cu{{S}_{2}}{{O}_{3}}\]

    B) \[N{{a}_{2}}{{S}_{4}}{{O}_{6}}\]

    C) \[NaCu{{S}_{2}}{{O}_{3}}\]

    D) \[C{{u}_{2}}O\]

    Correct Answer: C

    Solution :

    \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}+CuS{{O}_{4}}\,\to \,NaCu{{S}_{2}}{{O}_{3}}\]


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