Valence Bond Theory
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CHXII09:COORDINATION COMPOUNDS

322238 What type of hybridization is exhibited by \(\left[\mathrm{CoF}_{6}\right]^{-3}\) ?

1 \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}^{3} \mathrm{~d}^{2}\)
3 \(\mathrm{dsp}^{2}\)
4 \({{\text{d}}^{\text{2}}}{{\text{s}}^{\text{3}}}\)
MHTCET - 2021
CHXII09:COORDINATION COMPOUNDS

322239 The correct order of the number of unpaired electrons in the given complexes is
A. \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
B. \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
C. \({\left[ {{\rm{Co}}{{\rm{F}}_6}} \right]^{3 - }}\)
D. \(\left[\mathrm{Cr}(\text { oxalate })_{3}\right]^{3-}\)
E. \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
Choose the correct answer from the options given below:

1 A \( < \) E \( < \) C \( < \) B \( < \) D
2 E \( < \) A \( < \) D \( < \) C \( < \) B
3 E \( < \) A \( < \) B \( < \) D \( < \) C
4 A \( < \) E \( < \) D \( < \) C \( < \) B
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322240 Among the following, the species having square planar geometry for central atom are
\({\text{I}}{\text{.Xe}}{{\text{F}}_{\text{4}}}\)
\({\text{II}}{\text{.S}}{{\text{F}}_{\text{4}}}\)
\({\text{III}}{\text{.}}{\left[ {{\text{NiC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)
\({\text{IV}}{\text{.}}{\left[ {{\text{PtC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)

1 I and IV
2 I and II
3 II and III
4 III and IV
AIIMS - 2006
CHXII09:COORDINATION COMPOUNDS

322241 Assertion :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) is coloured while \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{3-}\) ion is colourless.
Reason :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) has \(\mathrm{dsp}^{2}\) hybridisation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

322242 Which of the following species represent the example of \(\mathrm{dsp}^{2}\)-hybridisation?

1 \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
2 \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
3 \(\left[\mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
4 \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
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CHXII09:COORDINATION COMPOUNDS

322238 What type of hybridization is exhibited by \(\left[\mathrm{CoF}_{6}\right]^{-3}\) ?

1 \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}^{3} \mathrm{~d}^{2}\)
3 \(\mathrm{dsp}^{2}\)
4 \({{\text{d}}^{\text{2}}}{{\text{s}}^{\text{3}}}\)
MHTCET - 2021
CHXII09:COORDINATION COMPOUNDS

322239 The correct order of the number of unpaired electrons in the given complexes is
A. \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
B. \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
C. \({\left[ {{\rm{Co}}{{\rm{F}}_6}} \right]^{3 - }}\)
D. \(\left[\mathrm{Cr}(\text { oxalate })_{3}\right]^{3-}\)
E. \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
Choose the correct answer from the options given below:

1 A \( < \) E \( < \) C \( < \) B \( < \) D
2 E \( < \) A \( < \) D \( < \) C \( < \) B
3 E \( < \) A \( < \) B \( < \) D \( < \) C
4 A \( < \) E \( < \) D \( < \) C \( < \) B
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322240 Among the following, the species having square planar geometry for central atom are
\({\text{I}}{\text{.Xe}}{{\text{F}}_{\text{4}}}\)
\({\text{II}}{\text{.S}}{{\text{F}}_{\text{4}}}\)
\({\text{III}}{\text{.}}{\left[ {{\text{NiC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)
\({\text{IV}}{\text{.}}{\left[ {{\text{PtC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)

1 I and IV
2 I and II
3 II and III
4 III and IV
AIIMS - 2006
CHXII09:COORDINATION COMPOUNDS

322241 Assertion :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) is coloured while \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{3-}\) ion is colourless.
Reason :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) has \(\mathrm{dsp}^{2}\) hybridisation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

322242 Which of the following species represent the example of \(\mathrm{dsp}^{2}\)-hybridisation?

1 \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
2 \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
3 \(\left[\mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
4 \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
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CHXII09:COORDINATION COMPOUNDS

322238 What type of hybridization is exhibited by \(\left[\mathrm{CoF}_{6}\right]^{-3}\) ?

1 \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}^{3} \mathrm{~d}^{2}\)
3 \(\mathrm{dsp}^{2}\)
4 \({{\text{d}}^{\text{2}}}{{\text{s}}^{\text{3}}}\)
MHTCET - 2021
CHXII09:COORDINATION COMPOUNDS

322239 The correct order of the number of unpaired electrons in the given complexes is
A. \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
B. \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
C. \({\left[ {{\rm{Co}}{{\rm{F}}_6}} \right]^{3 - }}\)
D. \(\left[\mathrm{Cr}(\text { oxalate })_{3}\right]^{3-}\)
E. \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
Choose the correct answer from the options given below:

1 A \( < \) E \( < \) C \( < \) B \( < \) D
2 E \( < \) A \( < \) D \( < \) C \( < \) B
3 E \( < \) A \( < \) B \( < \) D \( < \) C
4 A \( < \) E \( < \) D \( < \) C \( < \) B
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322240 Among the following, the species having square planar geometry for central atom are
\({\text{I}}{\text{.Xe}}{{\text{F}}_{\text{4}}}\)
\({\text{II}}{\text{.S}}{{\text{F}}_{\text{4}}}\)
\({\text{III}}{\text{.}}{\left[ {{\text{NiC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)
\({\text{IV}}{\text{.}}{\left[ {{\text{PtC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)

1 I and IV
2 I and II
3 II and III
4 III and IV
AIIMS - 2006
CHXII09:COORDINATION COMPOUNDS

322241 Assertion :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) is coloured while \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{3-}\) ion is colourless.
Reason :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) has \(\mathrm{dsp}^{2}\) hybridisation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

322242 Which of the following species represent the example of \(\mathrm{dsp}^{2}\)-hybridisation?

1 \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
2 \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
3 \(\left[\mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
4 \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
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CHXII09:COORDINATION COMPOUNDS

322238 What type of hybridization is exhibited by \(\left[\mathrm{CoF}_{6}\right]^{-3}\) ?

1 \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}^{3} \mathrm{~d}^{2}\)
3 \(\mathrm{dsp}^{2}\)
4 \({{\text{d}}^{\text{2}}}{{\text{s}}^{\text{3}}}\)
MHTCET - 2021
CHXII09:COORDINATION COMPOUNDS

322239 The correct order of the number of unpaired electrons in the given complexes is
A. \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
B. \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
C. \({\left[ {{\rm{Co}}{{\rm{F}}_6}} \right]^{3 - }}\)
D. \(\left[\mathrm{Cr}(\text { oxalate })_{3}\right]^{3-}\)
E. \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
Choose the correct answer from the options given below:

1 A \( < \) E \( < \) C \( < \) B \( < \) D
2 E \( < \) A \( < \) D \( < \) C \( < \) B
3 E \( < \) A \( < \) B \( < \) D \( < \) C
4 A \( < \) E \( < \) D \( < \) C \( < \) B
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322240 Among the following, the species having square planar geometry for central atom are
\({\text{I}}{\text{.Xe}}{{\text{F}}_{\text{4}}}\)
\({\text{II}}{\text{.S}}{{\text{F}}_{\text{4}}}\)
\({\text{III}}{\text{.}}{\left[ {{\text{NiC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)
\({\text{IV}}{\text{.}}{\left[ {{\text{PtC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)

1 I and IV
2 I and II
3 II and III
4 III and IV
AIIMS - 2006
CHXII09:COORDINATION COMPOUNDS

322241 Assertion :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) is coloured while \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{3-}\) ion is colourless.
Reason :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) has \(\mathrm{dsp}^{2}\) hybridisation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

322242 Which of the following species represent the example of \(\mathrm{dsp}^{2}\)-hybridisation?

1 \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
2 \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
3 \(\left[\mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
4 \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
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CHXII09:COORDINATION COMPOUNDS

322238 What type of hybridization is exhibited by \(\left[\mathrm{CoF}_{6}\right]^{-3}\) ?

1 \(\mathrm{sp}^{3}\)
2 \(\mathrm{sp}^{3} \mathrm{~d}^{2}\)
3 \(\mathrm{dsp}^{2}\)
4 \({{\text{d}}^{\text{2}}}{{\text{s}}^{\text{3}}}\)
MHTCET - 2021
CHXII09:COORDINATION COMPOUNDS

322239 The correct order of the number of unpaired electrons in the given complexes is
A. \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
B. \(\left[\mathrm{FeF}_{6}\right]^{3-}\)
C. \({\left[ {{\rm{Co}}{{\rm{F}}_6}} \right]^{3 - }}\)
D. \(\left[\mathrm{Cr}(\text { oxalate })_{3}\right]^{3-}\)
E. \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]\)
Choose the correct answer from the options given below:

1 A \( < \) E \( < \) C \( < \) B \( < \) D
2 E \( < \) A \( < \) D \( < \) C \( < \) B
3 E \( < \) A \( < \) B \( < \) D \( < \) C
4 A \( < \) E \( < \) D \( < \) C \( < \) B
JEE - 2023
CHXII09:COORDINATION COMPOUNDS

322240 Among the following, the species having square planar geometry for central atom are
\({\text{I}}{\text{.Xe}}{{\text{F}}_{\text{4}}}\)
\({\text{II}}{\text{.S}}{{\text{F}}_{\text{4}}}\)
\({\text{III}}{\text{.}}{\left[ {{\text{NiC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)
\({\text{IV}}{\text{.}}{\left[ {{\text{PtC}}{{\text{l}}_{\text{4}}}} \right]^{{\text{2 - }}}}\)

1 I and IV
2 I and II
3 II and III
4 III and IV
AIIMS - 2006
CHXII09:COORDINATION COMPOUNDS

322241 Assertion :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) is coloured while \(\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{3-}\) ion is colourless.
Reason :
\(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\) has \(\mathrm{dsp}^{2}\) hybridisation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII09:COORDINATION COMPOUNDS

322242 Which of the following species represent the example of \(\mathrm{dsp}^{2}\)-hybridisation?

1 \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)
2 \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}\)
3 \(\left[\mathrm{Zn}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
4 \(\left[\mathrm{FeF}_{6}\right]^{3-}\)