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JEE Main202120 Jul 2021Morning ShiftChemistryCoordination CompoundsActual

According to the valence bond theory the hybridization of central metal atom is dsp 2 for which one of the following compounds?

Options

  1. ANiCl 2 · 6 H 2 O
  2. BK 2 Ni ( CN ) 4
  3. CNi ( CO ) 4
  4. DNa 2 NiCl 4

Correct answer

B. K 2 Ni ( CN ) 4

Step-by-step solution

1) NiCl 2 . 6 H 2 O Ni + 2 → [ Ar ] 18 3   d 8 4   s 0 2) K 2 Ni ( CN ) 4 C . N . 4 Ni + 2 → [ Ar ] 18 3   d 8 4   s 0 3) Ni ( CO ) 4 CO - Strong field ligand 4) Na 2 NiCl 4 Ni → [ Ar ] 18 3   d 8 4   s 0 CN=4, Hybridisation   = sp 3

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