The oxide that shows magnetic property is:

  • A
    $SiO_{2}$
  • B
    $Mn_{3}O_{4}$
  • C
    $Na_{2}O$
  • D
    $MgO$

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Which cation from the following exhibits no magnetic moment?

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Which of the following ions exhibits a $3d^0 4s^0$ electronic configuration?

Formation of a coloured solution is possible when the metal ion in the compound contains:

The maximum and minimum melting points of the first and second transition series elements,respectively,are obtained with $-$

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