285491
The IUPAC name of\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}\) is
1 pentaamminecarbonatocobalt(III) chloride
2 carbonatopentamminecobalt(III) chloride
3 pentaamminecarbonatocobaltate(III) chloride
4 pentaamminecobalt(III) carbonate chloride.
Explanation:
(a) Pentaamminecarbonatocobalt(III) chloride
Karnataka CET 2021
CHEMISTRY(KCET)
285492
Homoleptic complexes among the following are
I. \(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\)
II. \(\left[\mathrm{CoCl}_2(e n)_2\right]^{+}\)
III. \(\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]\)
1 I only
2 I and II only
3 I and III only
4 III only.
Explanation:
(c) In homoleptic complexes, all the ligands connected with central atom are same or identical.
Karnataka CET 2021
CHEMISTRY(KCET)
285493
The correct order for wavelengths of light absorbed in the complex ions\(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\) is
(a) Stronger is the strength of the ligand, greater is the spliting and higher is the energy absorbed by complex. So, wavelength of light absorbed is inversely proportional to strength of the ligand.
Karnataka CET 2021
CHEMISTRY(KCET)
285494
The co-ordination number of Fe and Co in the complex ions,\(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively
1 6 and 8
2 4 and 6
3 6 and 4
4 3 and 4
Explanation:
(c) Coordination number is the number of atoms or ions surrounding the central metal.
In : \(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\),
\(\mathrm{C}_2 \mathrm{O}_4^{2-}\) is a bidentate ligand
\(\therefore\) Coordination number \(=6\)
In \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\),
\(\mathrm{SCN}^{-}\)is a monodentate ligand.
\(\therefore\) Coordination number \(=4\)
Karnataka CET 2020
CHEMISTRY(KCET)
285495
Number of stereoisomers exhibited by\(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is
1 2
2 5
3 3
4 4
Explanation:
(c)\(\left[\mathrm{Co}(\text { en })_2 \mathrm{Cl}_2\right]^{+}\)exhibit 3 stereoisomers.
(I-form)
trans-isomer
285491
The IUPAC name of\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}\) is
1 pentaamminecarbonatocobalt(III) chloride
2 carbonatopentamminecobalt(III) chloride
3 pentaamminecarbonatocobaltate(III) chloride
4 pentaamminecobalt(III) carbonate chloride.
Explanation:
(a) Pentaamminecarbonatocobalt(III) chloride
Karnataka CET 2021
CHEMISTRY(KCET)
285492
Homoleptic complexes among the following are
I. \(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\)
II. \(\left[\mathrm{CoCl}_2(e n)_2\right]^{+}\)
III. \(\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]\)
1 I only
2 I and II only
3 I and III only
4 III only.
Explanation:
(c) In homoleptic complexes, all the ligands connected with central atom are same or identical.
Karnataka CET 2021
CHEMISTRY(KCET)
285493
The correct order for wavelengths of light absorbed in the complex ions\(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\) is
(a) Stronger is the strength of the ligand, greater is the spliting and higher is the energy absorbed by complex. So, wavelength of light absorbed is inversely proportional to strength of the ligand.
Karnataka CET 2021
CHEMISTRY(KCET)
285494
The co-ordination number of Fe and Co in the complex ions,\(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively
1 6 and 8
2 4 and 6
3 6 and 4
4 3 and 4
Explanation:
(c) Coordination number is the number of atoms or ions surrounding the central metal.
In : \(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\),
\(\mathrm{C}_2 \mathrm{O}_4^{2-}\) is a bidentate ligand
\(\therefore\) Coordination number \(=6\)
In \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\),
\(\mathrm{SCN}^{-}\)is a monodentate ligand.
\(\therefore\) Coordination number \(=4\)
Karnataka CET 2020
CHEMISTRY(KCET)
285495
Number of stereoisomers exhibited by\(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is
1 2
2 5
3 3
4 4
Explanation:
(c)\(\left[\mathrm{Co}(\text { en })_2 \mathrm{Cl}_2\right]^{+}\)exhibit 3 stereoisomers.
(I-form)
trans-isomer
285491
The IUPAC name of\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}\) is
1 pentaamminecarbonatocobalt(III) chloride
2 carbonatopentamminecobalt(III) chloride
3 pentaamminecarbonatocobaltate(III) chloride
4 pentaamminecobalt(III) carbonate chloride.
Explanation:
(a) Pentaamminecarbonatocobalt(III) chloride
Karnataka CET 2021
CHEMISTRY(KCET)
285492
Homoleptic complexes among the following are
I. \(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\)
II. \(\left[\mathrm{CoCl}_2(e n)_2\right]^{+}\)
III. \(\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]\)
1 I only
2 I and II only
3 I and III only
4 III only.
Explanation:
(c) In homoleptic complexes, all the ligands connected with central atom are same or identical.
Karnataka CET 2021
CHEMISTRY(KCET)
285493
The correct order for wavelengths of light absorbed in the complex ions\(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\) is
(a) Stronger is the strength of the ligand, greater is the spliting and higher is the energy absorbed by complex. So, wavelength of light absorbed is inversely proportional to strength of the ligand.
Karnataka CET 2021
CHEMISTRY(KCET)
285494
The co-ordination number of Fe and Co in the complex ions,\(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively
1 6 and 8
2 4 and 6
3 6 and 4
4 3 and 4
Explanation:
(c) Coordination number is the number of atoms or ions surrounding the central metal.
In : \(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\),
\(\mathrm{C}_2 \mathrm{O}_4^{2-}\) is a bidentate ligand
\(\therefore\) Coordination number \(=6\)
In \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\),
\(\mathrm{SCN}^{-}\)is a monodentate ligand.
\(\therefore\) Coordination number \(=4\)
Karnataka CET 2020
CHEMISTRY(KCET)
285495
Number of stereoisomers exhibited by\(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is
1 2
2 5
3 3
4 4
Explanation:
(c)\(\left[\mathrm{Co}(\text { en })_2 \mathrm{Cl}_2\right]^{+}\)exhibit 3 stereoisomers.
(I-form)
trans-isomer
285491
The IUPAC name of\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}\) is
1 pentaamminecarbonatocobalt(III) chloride
2 carbonatopentamminecobalt(III) chloride
3 pentaamminecarbonatocobaltate(III) chloride
4 pentaamminecobalt(III) carbonate chloride.
Explanation:
(a) Pentaamminecarbonatocobalt(III) chloride
Karnataka CET 2021
CHEMISTRY(KCET)
285492
Homoleptic complexes among the following are
I. \(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\)
II. \(\left[\mathrm{CoCl}_2(e n)_2\right]^{+}\)
III. \(\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]\)
1 I only
2 I and II only
3 I and III only
4 III only.
Explanation:
(c) In homoleptic complexes, all the ligands connected with central atom are same or identical.
Karnataka CET 2021
CHEMISTRY(KCET)
285493
The correct order for wavelengths of light absorbed in the complex ions\(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\) is
(a) Stronger is the strength of the ligand, greater is the spliting and higher is the energy absorbed by complex. So, wavelength of light absorbed is inversely proportional to strength of the ligand.
Karnataka CET 2021
CHEMISTRY(KCET)
285494
The co-ordination number of Fe and Co in the complex ions,\(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively
1 6 and 8
2 4 and 6
3 6 and 4
4 3 and 4
Explanation:
(c) Coordination number is the number of atoms or ions surrounding the central metal.
In : \(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\),
\(\mathrm{C}_2 \mathrm{O}_4^{2-}\) is a bidentate ligand
\(\therefore\) Coordination number \(=6\)
In \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\),
\(\mathrm{SCN}^{-}\)is a monodentate ligand.
\(\therefore\) Coordination number \(=4\)
Karnataka CET 2020
CHEMISTRY(KCET)
285495
Number of stereoisomers exhibited by\(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is
1 2
2 5
3 3
4 4
Explanation:
(c)\(\left[\mathrm{Co}(\text { en })_2 \mathrm{Cl}_2\right]^{+}\)exhibit 3 stereoisomers.
(I-form)
trans-isomer
285491
The IUPAC name of\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}\) is
1 pentaamminecarbonatocobalt(III) chloride
2 carbonatopentamminecobalt(III) chloride
3 pentaamminecarbonatocobaltate(III) chloride
4 pentaamminecobalt(III) carbonate chloride.
Explanation:
(a) Pentaamminecarbonatocobalt(III) chloride
Karnataka CET 2021
CHEMISTRY(KCET)
285492
Homoleptic complexes among the following are
I. \(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\)
II. \(\left[\mathrm{CoCl}_2(e n)_2\right]^{+}\)
III. \(\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]\)
1 I only
2 I and II only
3 I and III only
4 III only.
Explanation:
(c) In homoleptic complexes, all the ligands connected with central atom are same or identical.
Karnataka CET 2021
CHEMISTRY(KCET)
285493
The correct order for wavelengths of light absorbed in the complex ions\(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\) is
(a) Stronger is the strength of the ligand, greater is the spliting and higher is the energy absorbed by complex. So, wavelength of light absorbed is inversely proportional to strength of the ligand.
Karnataka CET 2021
CHEMISTRY(KCET)
285494
The co-ordination number of Fe and Co in the complex ions,\(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively
1 6 and 8
2 4 and 6
3 6 and 4
4 3 and 4
Explanation:
(c) Coordination number is the number of atoms or ions surrounding the central metal.
In : \(\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\),
\(\mathrm{C}_2 \mathrm{O}_4^{2-}\) is a bidentate ligand
\(\therefore\) Coordination number \(=6\)
In \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\),
\(\mathrm{SCN}^{-}\)is a monodentate ligand.
\(\therefore\) Coordination number \(=4\)
Karnataka CET 2020
CHEMISTRY(KCET)
285495
Number of stereoisomers exhibited by\(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is
1 2
2 5
3 3
4 4
Explanation:
(c)\(\left[\mathrm{Co}(\text { en })_2 \mathrm{Cl}_2\right]^{+}\)exhibit 3 stereoisomers.
(I-form)
trans-isomer
