2. Solved Papers
  3. JCECE Engineering

JCECE Engineering JCECE Engineering Solved Paper-2012

  • question_answer
    The number of moles of \[KMn{{O}_{4}}\] reduced by one mole of \[KI\] in alkaline medium is

    A)  one fifth            

    B)  five

    C)  one                                      

    D)   two

    Correct Answer: D

    Solution :

    In alkaline solution, \[KMn{{O}_{4}}\] is reduced to \[Mn{{O}_{2}}\](colourless). \[2KMn{{O}_{4}}+2{{H}_{2}}O\xrightarrow{{}}Mn{{O}_{2}}+2KOH+3[O]\]                 \[KI+3[O]\xrightarrow{{}}KI{{O}_{3}}\] Hence, two moles of \[KMn{{O}_{4}}\] are reduced by one mole of\[KI\].


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