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Q. No.Out of the following complex compounds, which of the compounds will be having the minimum conductance in solution?
1.
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3 \)
2.
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl} \)
3.
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3 \mathrm{Cl}_3\right] \)
4.
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]\)
Subtopic: Introduction, Classification and Nomenclature |
From NCERT
NEET - 2025
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Hints
Match List-I with List-II
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV
2. A-I, B-IV, C-III, P-II
3. A-I, B-II, C-IV, D-III
4. A-II, B-III, C-I, D-IV
| List-I | List-II | ||
| A. | Haber process | I. | Fe catalyst |
| B. | Wacker oxidation | II. | \(PdCl_2\) |
| C. | Wilkinson catalyst | III. | \([PPh_3)_3 RhCl]\) |
| D. | Ziegler catalyst | IV. | \(TiCl_4~ \text {with}~ Al(CH_3)_3\) |
1. A-I, B-II, C-III, D-IV
2. A-I, B-IV, C-III, P-II
3. A-I, B-II, C-IV, D-III
4. A-II, B-III, C-I, D-IV
Subtopic: Organometallic Complexes & their Uses |
62%
From NCERT
NEET - 2025
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Which of the following are paramagnetic?
Choose the correct answer from the options given below:
1. A and D only
2. A, D and E only
3. A and C only
4. B and E only
| A. | \(\left[{NiCl}_4\right]^{2-}\) |
| B. | \(Ni(CO)_4\) |
| C. | \(\left[{Ni}({CN})_4\right]^{2-}\) |
| D. | \(\left[{Ni}\left({H}_2 {O}\right)_6\right]^{2+}\) |
| E. | \({Ni}\left({PPh}_3\right)_4\) |
Choose the correct answer from the options given below:
1. A and D only
2. A, D and E only
3. A and C only
4. B and E only
Subtopic: VBT, CFT & their Limitations |
From NCERT
NEET - 2025
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Hints
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The correct order of the wavelength of light absorbed by the following complexes is.
Choose the correct answer from the options given below:
1. \(C<D<A<B\)
2. \(C<A<D<B\)
3. \(B<D<A<C\)
4. \(B<A<D<C\)
| A. | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+} \) | B. | \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-} \) |
| C. | \(\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{2+} \) | D. | \(\left[\mathrm{Ti}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\) |
Choose the correct answer from the options given below:
1. \(C<D<A<B\)
2. \(C<A<D<B\)
3. \(B<D<A<C\)
4. \(B<A<D<C\)
Subtopic: VBT, CFT & their Limitations |
55%
From NCERT
NEET - 2025
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Identify the structural features common to [Mn₂(CO)₁₀] and [Co₂(CO)₈]:
A. Presence of a metal-metal bond
B. Presence of terminal carbonyl groups
C. Presence of bridging carbonyl groups
D. Metals in the zero oxidation state
Choose the correct answer from the options given below:
A. Presence of a metal-metal bond
B. Presence of terminal carbonyl groups
C. Presence of bridging carbonyl groups
D. Metals in the zero oxidation state
Choose the correct answer from the options given below:
| 1. | Only A, B and C | 2. | Only B, C and D |
| 3. | Only A, C and D | 4. | Only A, B and D |
Subtopic: Organometallic Complexes & their Uses |
58%
From NCERT
NEET - 2024
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Which of the following is not an ambidentate ligand?
1. \(\mathrm{C_2O^{2-}_4}\)
2. \(\mathrm{SCN}^-\)
3. \(\mathrm{NO^{-}_2}\)
4. \(\mathrm{CN}^-\)
1. \(\mathrm{C_2O^{2-}_4}\)
2. \(\mathrm{SCN}^-\)
3. \(\mathrm{NO^{-}_2}\)
4. \(\mathrm{CN}^-\)
Subtopic: Ligands |
82%
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Ethylene diaminetetraacetate ion is a/an :
| 1. | Hexadentate ligand | 2. | Ambidentate ligand |
| 3. | Monodentate ligand | 4. | Bidentate ligand |
Subtopic: Ligands |
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The crystal field stabilisation energy (CFSE) and the 'spin only' magnetic moment of \(\mathrm{[FeF_6]^{3-}}\) ion respectively, are:
1. \(0~\Delta~\text{and}~5.9~\text{BM}\)
2. \(0~\Delta~\text{and}~1.73~\text{BM}\)
3. \(2.0~\Delta~\text{and}~5.9~\text{BM}\)
4. \(2.0~\Delta~\text{and}~1.73~\text{BM}\)
1. \(0~\Delta~\text{and}~5.9~\text{BM}\)
2. \(0~\Delta~\text{and}~1.73~\text{BM}\)
3. \(2.0~\Delta~\text{and}~5.9~\text{BM}\)
4. \(2.0~\Delta~\text{and}~1.73~\text{BM}\)
Subtopic: VBT, CFT & their Limitations |
69%
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Match the complex ions in List-I with their corresponding hybridization in List-II.
Choose the correct answer from the options given below:
1. A-IV, B-III, C-II, D-I
2. A-III, B-I, C-IV, D-II
3. A-I, B-II, C-III, D-IV
4. A-III, B-IV, C-II, D-I
| List -I (Complex ion) |
List -II (Hybridisation) |
||
| A. | \([\mathrm{Ni}(\mathrm{CN})_4]^{2-}\) | I. | \(s p^3 \) |
| B. | \(\mathrm{[CoF_6}]^{3-}\) | II. | \( d^2sp^3 \) |
| C. | \([\mathrm{Co}(\mathrm{C}_2 \mathrm{O}_4)_3 ]^{3-}\) | III. | \(s p^3d^2\) |
| D. | \(\mathrm{[NiCl_4}]^{2-}\) | IV. | \(dsp^2\) |
Choose the correct answer from the options given below:
1. A-IV, B-III, C-II, D-I
2. A-III, B-I, C-IV, D-II
3. A-I, B-II, C-III, D-IV
4. A-III, B-IV, C-II, D-I
Subtopic: VBT, CFT & their Limitations |
84%
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The correct 'spin only' magnetic moments of \([\text{CoF}_6]^{3-}\) and \(\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) respectively, are:
1. 0 BM and 4.9 BM
2. 0 BM and 0 BM
3. 4.9 BM and 0 BM
4. 4.9 BM and 4.9 BM
1. 0 BM and 4.9 BM
2. 0 BM and 0 BM
3. 4.9 BM and 0 BM
4. 4.9 BM and 4.9 BM
Subtopic: VBT, CFT & their Limitations |
72%
From NCERT
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