Valence Bond Theory
CHXII09:COORDINATION COMPOUNDS

322234 Identify the number of unpaired electrons present and geometry respectively of \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\) complex.

1 0, square planar
2 2, square planar
3 4 , octahderal
4 0, octahedral
CHXII09:COORDINATION COMPOUNDS

322235 Hybridisation in the complex \(\mathrm{Ni}\left[\mathrm{ZnCl}_{4}\right]\) is

1 \(\mathrm{sp}\)
2 \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\)
4 \(\mathrm{dsp}^{2}\)
CHXII09:COORDINATION COMPOUNDS

322236 The structure of which of the following chlorospecies can be explained on the basis of \(\mathrm{dsp}^{2}\) hybridisation?

1 \(\mathrm{PdCl}_{4}^{2-}\)
2 \(\mathrm{FeCl}_{4}^{2-}\)
3 \(\mathrm{CoCl}_{4}^{2-}\)
4 \(\mathrm{NiCl}_{4}^{2-}\)
CHXII09:COORDINATION COMPOUNDS

322237 Which of the following complexes are not correctly matched with the hybridisation of their central metal ion?
(i) \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]=\mathrm{sp}^{3}\)
(ii) \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}=\mathrm{sp}^{3}\)
(iii) \(\left[\mathrm{CoF}_{6}\right]^{3-}=\mathrm{d}^{2} \mathrm{sp}^{3}\)
(iv) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}=\mathrm{sp}^{3} \mathrm{~d}^{2}\)
Select the correct answer using the codes given below:

1 (i) and (ii)
2 (i) and (iii)
3 (ii) and (iv)
4 (ii), (iii) and (iv)
CHXII09:COORDINATION COMPOUNDS

322234 Identify the number of unpaired electrons present and geometry respectively of \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\) complex.

1 0, square planar
2 2, square planar
3 4 , octahderal
4 0, octahedral
CHXII09:COORDINATION COMPOUNDS

322235 Hybridisation in the complex \(\mathrm{Ni}\left[\mathrm{ZnCl}_{4}\right]\) is

1 \(\mathrm{sp}\)
2 \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\)
4 \(\mathrm{dsp}^{2}\)
CHXII09:COORDINATION COMPOUNDS

322236 The structure of which of the following chlorospecies can be explained on the basis of \(\mathrm{dsp}^{2}\) hybridisation?

1 \(\mathrm{PdCl}_{4}^{2-}\)
2 \(\mathrm{FeCl}_{4}^{2-}\)
3 \(\mathrm{CoCl}_{4}^{2-}\)
4 \(\mathrm{NiCl}_{4}^{2-}\)
CHXII09:COORDINATION COMPOUNDS

322237 Which of the following complexes are not correctly matched with the hybridisation of their central metal ion?
(i) \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]=\mathrm{sp}^{3}\)
(ii) \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}=\mathrm{sp}^{3}\)
(iii) \(\left[\mathrm{CoF}_{6}\right]^{3-}=\mathrm{d}^{2} \mathrm{sp}^{3}\)
(iv) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}=\mathrm{sp}^{3} \mathrm{~d}^{2}\)
Select the correct answer using the codes given below:

1 (i) and (ii)
2 (i) and (iii)
3 (ii) and (iv)
4 (ii), (iii) and (iv)
CHXII09:COORDINATION COMPOUNDS

322234 Identify the number of unpaired electrons present and geometry respectively of \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\) complex.

1 0, square planar
2 2, square planar
3 4 , octahderal
4 0, octahedral
CHXII09:COORDINATION COMPOUNDS

322235 Hybridisation in the complex \(\mathrm{Ni}\left[\mathrm{ZnCl}_{4}\right]\) is

1 \(\mathrm{sp}\)
2 \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\)
4 \(\mathrm{dsp}^{2}\)
CHXII09:COORDINATION COMPOUNDS

322236 The structure of which of the following chlorospecies can be explained on the basis of \(\mathrm{dsp}^{2}\) hybridisation?

1 \(\mathrm{PdCl}_{4}^{2-}\)
2 \(\mathrm{FeCl}_{4}^{2-}\)
3 \(\mathrm{CoCl}_{4}^{2-}\)
4 \(\mathrm{NiCl}_{4}^{2-}\)
CHXII09:COORDINATION COMPOUNDS

322237 Which of the following complexes are not correctly matched with the hybridisation of their central metal ion?
(i) \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]=\mathrm{sp}^{3}\)
(ii) \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}=\mathrm{sp}^{3}\)
(iii) \(\left[\mathrm{CoF}_{6}\right]^{3-}=\mathrm{d}^{2} \mathrm{sp}^{3}\)
(iv) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}=\mathrm{sp}^{3} \mathrm{~d}^{2}\)
Select the correct answer using the codes given below:

1 (i) and (ii)
2 (i) and (iii)
3 (ii) and (iv)
4 (ii), (iii) and (iv)
CHXII09:COORDINATION COMPOUNDS

322234 Identify the number of unpaired electrons present and geometry respectively of \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\) complex.

1 0, square planar
2 2, square planar
3 4 , octahderal
4 0, octahedral
CHXII09:COORDINATION COMPOUNDS

322235 Hybridisation in the complex \(\mathrm{Ni}\left[\mathrm{ZnCl}_{4}\right]\) is

1 \(\mathrm{sp}\)
2 \(\mathrm{sp}^{2}\)
3 \(\mathrm{sp}^{3}\)
4 \(\mathrm{dsp}^{2}\)
CHXII09:COORDINATION COMPOUNDS

322236 The structure of which of the following chlorospecies can be explained on the basis of \(\mathrm{dsp}^{2}\) hybridisation?

1 \(\mathrm{PdCl}_{4}^{2-}\)
2 \(\mathrm{FeCl}_{4}^{2-}\)
3 \(\mathrm{CoCl}_{4}^{2-}\)
4 \(\mathrm{NiCl}_{4}^{2-}\)
CHXII09:COORDINATION COMPOUNDS

322237 Which of the following complexes are not correctly matched with the hybridisation of their central metal ion?
(i) \(\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]=\mathrm{sp}^{3}\)
(ii) \(\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}=\mathrm{sp}^{3}\)
(iii) \(\left[\mathrm{CoF}_{6}\right]^{3-}=\mathrm{d}^{2} \mathrm{sp}^{3}\)
(iv) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}=\mathrm{sp}^{3} \mathrm{~d}^{2}\)
Select the correct answer using the codes given below:

1 (i) and (ii)
2 (i) and (iii)
3 (ii) and (iv)
4 (ii), (iii) and (iv)