(D) : $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ is an outer orbital complex because nd orbital is used in hybridisation. Oxidation of $\mathrm{Ni}$ in $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ complex is +2 $\mathrm{Ni}^{2+}: \mathrm{d}^{8}$ Hence, it is an outer orbital complex.
Manipal-2020
COORDINATION COMPOUNDS
274171
The correct representation of complex ion is
(D) : IUPAC naming of complex is done in alphabetical order of ligands. Then it should be written in alphabetical order. IUPAC name of complex is tetraamine aqua chloro cobalt (II) i.e., $\quad\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}\right]^{2+}$
Manipal-2020
COORDINATION COMPOUNDS
274172
Which of the following spectrochemical series is true?
(C) : Correct spectrochemical series is :- $\mathrm{SCN}^{-}<\mathrm{F}^{-}<$en $<\mathrm{NH}_{3}<\mathrm{CO}$ On moving left to right in above series strength of ligand increase and that's why $\mathrm{CO}$ act as strong field ligand.
GUJCET-2016
COORDINATION COMPOUNDS
274173
Homoleptic complex among the following are
1 A only
2 A and B only
3 A and C only
4 C only
Explanation:
(C) : Homoleptic complex contains only are type of ligands which is directly attached with metal. Hence, $\mathrm{K}_{3}\left[\mathrm{Al}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]$ and $\mathrm{K}_{2}\left[\mathrm{Zn}(\mathrm{OH})_{4}\right]$ complex contains only one type of lignad $\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$ and $\mathrm{OH}^{-}$ion respectively. Therefore these complexes are known as homoleptic complex.
(D) : $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ is an outer orbital complex because nd orbital is used in hybridisation. Oxidation of $\mathrm{Ni}$ in $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ complex is +2 $\mathrm{Ni}^{2+}: \mathrm{d}^{8}$ Hence, it is an outer orbital complex.
Manipal-2020
COORDINATION COMPOUNDS
274171
The correct representation of complex ion is
(D) : IUPAC naming of complex is done in alphabetical order of ligands. Then it should be written in alphabetical order. IUPAC name of complex is tetraamine aqua chloro cobalt (II) i.e., $\quad\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}\right]^{2+}$
Manipal-2020
COORDINATION COMPOUNDS
274172
Which of the following spectrochemical series is true?
(C) : Correct spectrochemical series is :- $\mathrm{SCN}^{-}<\mathrm{F}^{-}<$en $<\mathrm{NH}_{3}<\mathrm{CO}$ On moving left to right in above series strength of ligand increase and that's why $\mathrm{CO}$ act as strong field ligand.
GUJCET-2016
COORDINATION COMPOUNDS
274173
Homoleptic complex among the following are
1 A only
2 A and B only
3 A and C only
4 C only
Explanation:
(C) : Homoleptic complex contains only are type of ligands which is directly attached with metal. Hence, $\mathrm{K}_{3}\left[\mathrm{Al}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]$ and $\mathrm{K}_{2}\left[\mathrm{Zn}(\mathrm{OH})_{4}\right]$ complex contains only one type of lignad $\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$ and $\mathrm{OH}^{-}$ion respectively. Therefore these complexes are known as homoleptic complex.
(D) : $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ is an outer orbital complex because nd orbital is used in hybridisation. Oxidation of $\mathrm{Ni}$ in $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ complex is +2 $\mathrm{Ni}^{2+}: \mathrm{d}^{8}$ Hence, it is an outer orbital complex.
Manipal-2020
COORDINATION COMPOUNDS
274171
The correct representation of complex ion is
(D) : IUPAC naming of complex is done in alphabetical order of ligands. Then it should be written in alphabetical order. IUPAC name of complex is tetraamine aqua chloro cobalt (II) i.e., $\quad\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}\right]^{2+}$
Manipal-2020
COORDINATION COMPOUNDS
274172
Which of the following spectrochemical series is true?
(C) : Correct spectrochemical series is :- $\mathrm{SCN}^{-}<\mathrm{F}^{-}<$en $<\mathrm{NH}_{3}<\mathrm{CO}$ On moving left to right in above series strength of ligand increase and that's why $\mathrm{CO}$ act as strong field ligand.
GUJCET-2016
COORDINATION COMPOUNDS
274173
Homoleptic complex among the following are
1 A only
2 A and B only
3 A and C only
4 C only
Explanation:
(C) : Homoleptic complex contains only are type of ligands which is directly attached with metal. Hence, $\mathrm{K}_{3}\left[\mathrm{Al}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]$ and $\mathrm{K}_{2}\left[\mathrm{Zn}(\mathrm{OH})_{4}\right]$ complex contains only one type of lignad $\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$ and $\mathrm{OH}^{-}$ion respectively. Therefore these complexes are known as homoleptic complex.
(D) : $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ is an outer orbital complex because nd orbital is used in hybridisation. Oxidation of $\mathrm{Ni}$ in $\left[\mathrm{Ni}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}$ complex is +2 $\mathrm{Ni}^{2+}: \mathrm{d}^{8}$ Hence, it is an outer orbital complex.
Manipal-2020
COORDINATION COMPOUNDS
274171
The correct representation of complex ion is
(D) : IUPAC naming of complex is done in alphabetical order of ligands. Then it should be written in alphabetical order. IUPAC name of complex is tetraamine aqua chloro cobalt (II) i.e., $\quad\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{4}\left(\mathrm{H}_{2} \mathrm{O}\right) \mathrm{Cl}\right]^{2+}$
Manipal-2020
COORDINATION COMPOUNDS
274172
Which of the following spectrochemical series is true?
(C) : Correct spectrochemical series is :- $\mathrm{SCN}^{-}<\mathrm{F}^{-}<$en $<\mathrm{NH}_{3}<\mathrm{CO}$ On moving left to right in above series strength of ligand increase and that's why $\mathrm{CO}$ act as strong field ligand.
GUJCET-2016
COORDINATION COMPOUNDS
274173
Homoleptic complex among the following are
1 A only
2 A and B only
3 A and C only
4 C only
Explanation:
(C) : Homoleptic complex contains only are type of ligands which is directly attached with metal. Hence, $\mathrm{K}_{3}\left[\mathrm{Al}\left(\mathrm{C}_{2} \mathrm{O}_{4}\right)_{3}\right]$ and $\mathrm{K}_{2}\left[\mathrm{Zn}(\mathrm{OH})_{4}\right]$ complex contains only one type of lignad $\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$ and $\mathrm{OH}^{-}$ion respectively. Therefore these complexes are known as homoleptic complex.
