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Question

We have four beakers containing the mixtures as shown. In which of the following beaker the constituents of the mixtures cannot be separated by magnetic separation.


  1. Beaker a

  2. Beaker b and c

  3. Beaker c

  4. Beaker b


Solution

The correct option is C

Beaker c


Nickel, cobalt and steel all are ferromagnetic materials. So they can be separated by magnets.  Most metals including chromium are paramagnetic due to the unpaired e⁻ and are only weakly attracted  into a magnetic field

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