Isomerism in Coordination Compounds
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CHXII09:COORDINATION COMPOUNDS

321957 The number of geometric isomers that can exist for square planar \({\mathrm{\left[\mathrm{Pt}(\mathrm{Cl})(\mathrm{py})\left(\mathrm{NH}_{3}\right)\left(\mathrm{NH}_{2} \mathrm{OH}\right)\right]^{+}}}\)is
____. (py = pyridine)

1 1
2 2
3 3
4 4
CHXII09:COORDINATION COMPOUNDS

321958 The correct statement on the isomerism associated with the following complex ions
(A) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NH}_{3}\right]^{2+}\)
(B) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\) and
(C) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]^{2+}\) is

1 (A) and (B) show geometrical and optical isomerism.
2 (B) and (C) show geometrical and optical isomerism.
3 (A) and (B) show geometrical isomerism only.
4 (B) and (C) show geometrical isomerism only.
CHXII09:COORDINATION COMPOUNDS

321959 Among the following complex ions, the one which shows geometrical isomerism will be

1 \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}\right]\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
4 \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{3-}\)
AIIMS - 2018
CHXII09:COORDINATION COMPOUNDS

321960 \(\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]\) does not show optical isomerism because it has

1 Plane of symmetry
2 Center of symmetry
3 Axis of symmetry
4 None of the above
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CHXII09:COORDINATION COMPOUNDS

321957 The number of geometric isomers that can exist for square planar \({\mathrm{\left[\mathrm{Pt}(\mathrm{Cl})(\mathrm{py})\left(\mathrm{NH}_{3}\right)\left(\mathrm{NH}_{2} \mathrm{OH}\right)\right]^{+}}}\)is
____. (py = pyridine)

1 1
2 2
3 3
4 4
CHXII09:COORDINATION COMPOUNDS

321958 The correct statement on the isomerism associated with the following complex ions
(A) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NH}_{3}\right]^{2+}\)
(B) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\) and
(C) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]^{2+}\) is

1 (A) and (B) show geometrical and optical isomerism.
2 (B) and (C) show geometrical and optical isomerism.
3 (A) and (B) show geometrical isomerism only.
4 (B) and (C) show geometrical isomerism only.
CHXII09:COORDINATION COMPOUNDS

321959 Among the following complex ions, the one which shows geometrical isomerism will be

1 \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}\right]\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
4 \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{3-}\)
AIIMS - 2018
CHXII09:COORDINATION COMPOUNDS

321960 \(\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]\) does not show optical isomerism because it has

1 Plane of symmetry
2 Center of symmetry
3 Axis of symmetry
4 None of the above
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CHXII09:COORDINATION COMPOUNDS

321957 The number of geometric isomers that can exist for square planar \({\mathrm{\left[\mathrm{Pt}(\mathrm{Cl})(\mathrm{py})\left(\mathrm{NH}_{3}\right)\left(\mathrm{NH}_{2} \mathrm{OH}\right)\right]^{+}}}\)is
____. (py = pyridine)

1 1
2 2
3 3
4 4
CHXII09:COORDINATION COMPOUNDS

321958 The correct statement on the isomerism associated with the following complex ions
(A) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NH}_{3}\right]^{2+}\)
(B) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\) and
(C) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]^{2+}\) is

1 (A) and (B) show geometrical and optical isomerism.
2 (B) and (C) show geometrical and optical isomerism.
3 (A) and (B) show geometrical isomerism only.
4 (B) and (C) show geometrical isomerism only.
CHXII09:COORDINATION COMPOUNDS

321959 Among the following complex ions, the one which shows geometrical isomerism will be

1 \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}\right]\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
4 \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{3-}\)
AIIMS - 2018
CHXII09:COORDINATION COMPOUNDS

321960 \(\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]\) does not show optical isomerism because it has

1 Plane of symmetry
2 Center of symmetry
3 Axis of symmetry
4 None of the above
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CHXII09:COORDINATION COMPOUNDS

321957 The number of geometric isomers that can exist for square planar \({\mathrm{\left[\mathrm{Pt}(\mathrm{Cl})(\mathrm{py})\left(\mathrm{NH}_{3}\right)\left(\mathrm{NH}_{2} \mathrm{OH}\right)\right]^{+}}}\)is
____. (py = pyridine)

1 1
2 2
3 3
4 4
CHXII09:COORDINATION COMPOUNDS

321958 The correct statement on the isomerism associated with the following complex ions
(A) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{5} \mathrm{NH}_{3}\right]^{2+}\)
(B) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4}\left(\mathrm{NH}_{3}\right)_{2}\right]^{2+}\) and
(C) \(\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]^{2+}\) is

1 (A) and (B) show geometrical and optical isomerism.
2 (B) and (C) show geometrical and optical isomerism.
3 (A) and (B) show geometrical isomerism only.
4 (B) and (C) show geometrical isomerism only.
CHXII09:COORDINATION COMPOUNDS

321959 Among the following complex ions, the one which shows geometrical isomerism will be

1 \(\left[\mathrm{Cr}\left(\mathrm{H}_{2} \mathrm{O}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\)
2 \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{3} \mathrm{Cl}\right]\)
3 \(\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}\)
4 \(\left[\mathrm{Co}(\mathrm{CN})_{5}(\mathrm{NC})\right]^{3-}\)
AIIMS - 2018
CHXII09:COORDINATION COMPOUNDS

321960 \(\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{3}\left(\mathrm{NH}_{3}\right)_{3}\right]\) does not show optical isomerism because it has

1 Plane of symmetry
2 Center of symmetry
3 Axis of symmetry
4 None of the above
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