2. Sample Papers
  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main - Mock Test - 19

  • question_answer
    If an impurity in a metal has a greater affinity for oxygen and is more easily oxidised than the metal, then the purification of metal may be carried out by

    A)  poling              

    B)  zone refining

    C)  electrolytic refining

    D)  cupellation

    Correct Answer: D

    Solution :

    [d]: Cupellation can be used in such a case.


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