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

  • question_answer
    The equivalent weight of \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\] in acidic medium

    A) 294

    B) 298

    C) 49

    D) 50

    Correct Answer: C

    Solution :

      \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}+3{{H}_{2}}S{{O}_{4}}\,\to {{K}_{2}}S{{O}_{4}}+C{{r}_{2}}{{(S{{O}_{4}})}_{3}}+3\,(O)+3{{H}_{2}}\] No. of electrons lossed = 12 - 6 = 6 \ Equivalent weight = \[\frac{M}{6}=\frac{294}{6}=49.\]


You need to login to perform this action.
You will be redirected in 3 sec spinner