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NiCI2{P(C2H5)2(C6H5)}2 exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic) the coordination geometries of Ni2+ in the paramagnetic and diamagnetic states respectively are
(2012, Only One Option Correct Type)
  • a)
    tetrahedral and tetrahedral
  • b)
    square planer and square planer
  • c)
    tetrahedral and square planer
  • d)
    square planer and  tetrahedral
Correct answer is option 'C'. Can you explain this answer?
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NiCI2{P(C2H5)2(C6H5)}2 exhibits temperature dependent magnetic behavio...
In the given complex , NiCI2{P(C2H5)2(C6H5)}2 nickel is in + 2 oxidation state and the ground state electronic configuration of Ni2+ ion in free gaseous state is

For the given four coordinated complex to be paramagnetic , it must possess unpaired electrons in the valence shell. To satisfy this condition, four lone pairs from the four ligands occupies the four sp3 hybrid orbitals as

There fore , geometry of paramagnetic complex must be tetrahedral. On the other hand , for complex to be diamagnetic, there should not be any unpaired electrons in the valence shell. This condition can be fullfilled by pairing electrons of 3d orbitals against Hund's rule as

The above electronic arrangement gives dsp2 hybridisation and therefore, square planar geometry of the complex.
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NiCI2{P(C2H5)2(C6H5)}2 exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic) the coordination geometries of Ni2+ in the paramagnetic and diamagnetic states respectively are(2012, Only One Option Correct Type)a)tetrahedral andtetrahedralb)square planer andsquare planerc)tetrahedral andsquare planerd)square planer andtetrahedralCorrect answer is option 'C'. Can you explain this answer?
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NiCI2{P(C2H5)2(C6H5)}2 exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic) the coordination geometries of Ni2+ in the paramagnetic and diamagnetic states respectively are(2012, Only One Option Correct Type)a)tetrahedral andtetrahedralb)square planer andsquare planerc)tetrahedral andsquare planerd)square planer andtetrahedralCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about NiCI2{P(C2H5)2(C6H5)}2 exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic) the coordination geometries of Ni2+ in the paramagnetic and diamagnetic states respectively are(2012, Only One Option Correct Type)a)tetrahedral andtetrahedralb)square planer andsquare planerc)tetrahedral andsquare planerd)square planer andtetrahedralCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for NiCI2{P(C2H5)2(C6H5)}2 exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic) the coordination geometries of Ni2+ in the paramagnetic and diamagnetic states respectively are(2012, Only One Option Correct Type)a)tetrahedral andtetrahedralb)square planer andsquare planerc)tetrahedral andsquare planerd)square planer andtetrahedralCorrect answer is option 'C'. Can you explain this answer?.
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