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The correct option with order of melting points of the pairs (( Mn , Fe ),( Tc , Ru ) ) and (( Re , Os ) ) is :

Options

  1. A( Fe Mn , Ru Tc ) and ( Re Os )
  2. B( Mn Fe , Tc Ru ) and ( Os Re )
  3. C( Mn Fe , Tc Ru ) and ( Re Os )
  4. D( Fe Mn , Ru Tc ) and ( Os Re )

Correct answer

B. ( Mn Fe , Tc Ru ) and ( Os Re )

Step-by-step solution

Melting point order aligned & Fe > Mn & Ru > Tc & Re > Os aligned

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