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NEET 2009
Exam
NEET
Year
2009
Subject
Chemistry
Chapter
Coordination Compounds

NEET 2009 · Chemistry · Coordination Compounds

Out of TiF_6^ 2- and CoF_6^ 3- , Cu_2 Cl_2 and NiCl_4^ 2- ( Z of...

Out of TiF62−\mathrm{TiF}_6^{2-} and CoF63−,Cu2Cl2\mathrm{CoF}_6^{3-}, \mathrm{Cu}_2 \mathrm{Cl}_2 and NiCl42−\mathrm{NiCl}_4^{2-} ( Z\mathrm{Z} of Ti=22,Co=27,Cu=29,Ni=28)\mathrm{Ti}=22, \mathrm{Co}=27, \mathrm{Cu}=29, \mathrm{Ni}=28) the colourless species are :

Options

  1. ACoF63−\mathrm{CoF}_6^{3-} and NiCl42−\mathrm{NiCl}_4^{2-}
  2. BTiF62−\mathrm{TiF}_6^{2-} and CoF63−\mathrm{CoF}_6^{3-}
  3. CCu2Cl2\mathrm{Cu}_2 \mathrm{Cl}_2 and NiCl42−\mathrm{NiCl}_4^{2-}
  4. DTiF62−\mathrm{TiF}_6^{2-} and Cu2Cl2\mathrm{Cu}_2 \mathrm{Cl}_2

Correct answer

D. TiF62−\mathrm{TiF}_6^{2-} and Cu2Cl2\mathrm{Cu}_2 \mathrm{Cl}_2

Step-by-step solution

In both TiF62−\mathrm{TiF}_6^{2-} and Cu2Cl2\mathrm{Cu}_2 \mathrm{Cl}_2, these no d−\mathrm{d}- electrons or no unpaired electrons so, these are colourless.
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