28641
The \( EAN \) of iron in potassium ferricyanide is
1 \(18\)
2 \( 54\)
3 \(35\)
4 \(23\)
Explanation:
(c) \(EAN\) of a central metal ion $=$ (atomic no. of central atom) $ -$ oxidation state $ +$ no. of ligands \(× 2\) \( = 26 - 3 + (6 \times 2) = 23 + 12 = 35\)
COORDINATION COMPOUNDS
28642
In the coordination compound, \({K_4}[Ni{(CN)_4}]\) oxidation state of nickel is
1 \( - 1\)
2 \( 0\)
3 \( + 1\)
4 \( + 2\)
Explanation:
(b) \( + 1 \times 4 + x - 1 \times 4 = 0\) \(4 + x - 4 = 0 \Rightarrow x = 0\) for \(Ni.\)
COORDINATION COMPOUNDS
28643
According to \( IUPAC \) nomenclature sodium nitroprussied is named is
1 Sodium pentacyanidonitrosonium ferrat \((II)\)
2 Sodium nitroferricyanide
3 Sodium nitroferrocyanide
4 Sodium pentacyanonitrosyl ferrate \((II)\)
Explanation:
NO readily forms coordination complexes with transition metla ions. These complex are called nitrosyls. \(F^{2+}\) and NO form the complex \(\left[ Fe \left( H _{2} O \right)_{5} NO \right]^{2+}\) which is responsible for the colour in the brown ring test for nitrates. The colour is due to change transfer. This complex formally contains \(F e(+1)\) and \(N O^{+}\). Its magnetic moment is approximately \(3.9 BM ,\) confirming the presence of three - unpaired electrons. Note that \(N O^{+}\) is a strong field ligand, thus, it reshuffles the electronic configuration: \(F e^{+}\left(3 d^{6} 4 s^{1}\right) \rightarrow F e+\left(3 d^{7} 4 s^{0}\right)\) Most nitrosyl complexes are colourd. Another example is sodium nitroprusside \(N a_{2}\left[F e(C N)_{5} N O\right] .2 H_{2} O\). The colour (brown - red) is again due to charge transfer. This complex has \(N O^{+}\) as a ligands and \(F e^{+}\) as the central metal ion. Thus, its IUPAC name should be sodium pentacyanidonitrosonium ferrat (II).
COORDINATION COMPOUNDS
28644
Pick out the complex compound in which the central metal atom obeys \(EAN\) rule strictly
1 \({K_4}[Fe{(CN)_6}]\)
2 \({K_3}[Fe{(CN)_6}]\)
3 \([Cr{({H_2}O)_6}]\,C{l_3}\)
4 \([Cu{(N{H_3})_4}]\,S{O_4}\)
Explanation:
(a) In complex \({K_4}[Fe\,{(CN)_6}]\) the \(Fe\) obey \(EAN \) rule strictly.
COORDINATION COMPOUNDS
28645
Which of the following is wrong statement
1 \(Ni{(CO)_4}\) has oxidation number \(+ 4 \) for \(Ni\)
2 \(Ni{(CO)_4}\) has zero oxidation number for \( Ni\)
28641
The \( EAN \) of iron in potassium ferricyanide is
1 \(18\)
2 \( 54\)
3 \(35\)
4 \(23\)
Explanation:
(c) \(EAN\) of a central metal ion $=$ (atomic no. of central atom) $ -$ oxidation state $ +$ no. of ligands \(× 2\) \( = 26 - 3 + (6 \times 2) = 23 + 12 = 35\)
COORDINATION COMPOUNDS
28642
In the coordination compound, \({K_4}[Ni{(CN)_4}]\) oxidation state of nickel is
1 \( - 1\)
2 \( 0\)
3 \( + 1\)
4 \( + 2\)
Explanation:
(b) \( + 1 \times 4 + x - 1 \times 4 = 0\) \(4 + x - 4 = 0 \Rightarrow x = 0\) for \(Ni.\)
COORDINATION COMPOUNDS
28643
According to \( IUPAC \) nomenclature sodium nitroprussied is named is
1 Sodium pentacyanidonitrosonium ferrat \((II)\)
2 Sodium nitroferricyanide
3 Sodium nitroferrocyanide
4 Sodium pentacyanonitrosyl ferrate \((II)\)
Explanation:
NO readily forms coordination complexes with transition metla ions. These complex are called nitrosyls. \(F^{2+}\) and NO form the complex \(\left[ Fe \left( H _{2} O \right)_{5} NO \right]^{2+}\) which is responsible for the colour in the brown ring test for nitrates. The colour is due to change transfer. This complex formally contains \(F e(+1)\) and \(N O^{+}\). Its magnetic moment is approximately \(3.9 BM ,\) confirming the presence of three - unpaired electrons. Note that \(N O^{+}\) is a strong field ligand, thus, it reshuffles the electronic configuration: \(F e^{+}\left(3 d^{6} 4 s^{1}\right) \rightarrow F e+\left(3 d^{7} 4 s^{0}\right)\) Most nitrosyl complexes are colourd. Another example is sodium nitroprusside \(N a_{2}\left[F e(C N)_{5} N O\right] .2 H_{2} O\). The colour (brown - red) is again due to charge transfer. This complex has \(N O^{+}\) as a ligands and \(F e^{+}\) as the central metal ion. Thus, its IUPAC name should be sodium pentacyanidonitrosonium ferrat (II).
COORDINATION COMPOUNDS
28644
Pick out the complex compound in which the central metal atom obeys \(EAN\) rule strictly
1 \({K_4}[Fe{(CN)_6}]\)
2 \({K_3}[Fe{(CN)_6}]\)
3 \([Cr{({H_2}O)_6}]\,C{l_3}\)
4 \([Cu{(N{H_3})_4}]\,S{O_4}\)
Explanation:
(a) In complex \({K_4}[Fe\,{(CN)_6}]\) the \(Fe\) obey \(EAN \) rule strictly.
COORDINATION COMPOUNDS
28645
Which of the following is wrong statement
1 \(Ni{(CO)_4}\) has oxidation number \(+ 4 \) for \(Ni\)
2 \(Ni{(CO)_4}\) has zero oxidation number for \( Ni\)
28641
The \( EAN \) of iron in potassium ferricyanide is
1 \(18\)
2 \( 54\)
3 \(35\)
4 \(23\)
Explanation:
(c) \(EAN\) of a central metal ion $=$ (atomic no. of central atom) $ -$ oxidation state $ +$ no. of ligands \(× 2\) \( = 26 - 3 + (6 \times 2) = 23 + 12 = 35\)
COORDINATION COMPOUNDS
28642
In the coordination compound, \({K_4}[Ni{(CN)_4}]\) oxidation state of nickel is
1 \( - 1\)
2 \( 0\)
3 \( + 1\)
4 \( + 2\)
Explanation:
(b) \( + 1 \times 4 + x - 1 \times 4 = 0\) \(4 + x - 4 = 0 \Rightarrow x = 0\) for \(Ni.\)
COORDINATION COMPOUNDS
28643
According to \( IUPAC \) nomenclature sodium nitroprussied is named is
1 Sodium pentacyanidonitrosonium ferrat \((II)\)
2 Sodium nitroferricyanide
3 Sodium nitroferrocyanide
4 Sodium pentacyanonitrosyl ferrate \((II)\)
Explanation:
NO readily forms coordination complexes with transition metla ions. These complex are called nitrosyls. \(F^{2+}\) and NO form the complex \(\left[ Fe \left( H _{2} O \right)_{5} NO \right]^{2+}\) which is responsible for the colour in the brown ring test for nitrates. The colour is due to change transfer. This complex formally contains \(F e(+1)\) and \(N O^{+}\). Its magnetic moment is approximately \(3.9 BM ,\) confirming the presence of three - unpaired electrons. Note that \(N O^{+}\) is a strong field ligand, thus, it reshuffles the electronic configuration: \(F e^{+}\left(3 d^{6} 4 s^{1}\right) \rightarrow F e+\left(3 d^{7} 4 s^{0}\right)\) Most nitrosyl complexes are colourd. Another example is sodium nitroprusside \(N a_{2}\left[F e(C N)_{5} N O\right] .2 H_{2} O\). The colour (brown - red) is again due to charge transfer. This complex has \(N O^{+}\) as a ligands and \(F e^{+}\) as the central metal ion. Thus, its IUPAC name should be sodium pentacyanidonitrosonium ferrat (II).
COORDINATION COMPOUNDS
28644
Pick out the complex compound in which the central metal atom obeys \(EAN\) rule strictly
1 \({K_4}[Fe{(CN)_6}]\)
2 \({K_3}[Fe{(CN)_6}]\)
3 \([Cr{({H_2}O)_6}]\,C{l_3}\)
4 \([Cu{(N{H_3})_4}]\,S{O_4}\)
Explanation:
(a) In complex \({K_4}[Fe\,{(CN)_6}]\) the \(Fe\) obey \(EAN \) rule strictly.
COORDINATION COMPOUNDS
28645
Which of the following is wrong statement
1 \(Ni{(CO)_4}\) has oxidation number \(+ 4 \) for \(Ni\)
2 \(Ni{(CO)_4}\) has zero oxidation number for \( Ni\)
28641
The \( EAN \) of iron in potassium ferricyanide is
1 \(18\)
2 \( 54\)
3 \(35\)
4 \(23\)
Explanation:
(c) \(EAN\) of a central metal ion $=$ (atomic no. of central atom) $ -$ oxidation state $ +$ no. of ligands \(× 2\) \( = 26 - 3 + (6 \times 2) = 23 + 12 = 35\)
COORDINATION COMPOUNDS
28642
In the coordination compound, \({K_4}[Ni{(CN)_4}]\) oxidation state of nickel is
1 \( - 1\)
2 \( 0\)
3 \( + 1\)
4 \( + 2\)
Explanation:
(b) \( + 1 \times 4 + x - 1 \times 4 = 0\) \(4 + x - 4 = 0 \Rightarrow x = 0\) for \(Ni.\)
COORDINATION COMPOUNDS
28643
According to \( IUPAC \) nomenclature sodium nitroprussied is named is
1 Sodium pentacyanidonitrosonium ferrat \((II)\)
2 Sodium nitroferricyanide
3 Sodium nitroferrocyanide
4 Sodium pentacyanonitrosyl ferrate \((II)\)
Explanation:
NO readily forms coordination complexes with transition metla ions. These complex are called nitrosyls. \(F^{2+}\) and NO form the complex \(\left[ Fe \left( H _{2} O \right)_{5} NO \right]^{2+}\) which is responsible for the colour in the brown ring test for nitrates. The colour is due to change transfer. This complex formally contains \(F e(+1)\) and \(N O^{+}\). Its magnetic moment is approximately \(3.9 BM ,\) confirming the presence of three - unpaired electrons. Note that \(N O^{+}\) is a strong field ligand, thus, it reshuffles the electronic configuration: \(F e^{+}\left(3 d^{6} 4 s^{1}\right) \rightarrow F e+\left(3 d^{7} 4 s^{0}\right)\) Most nitrosyl complexes are colourd. Another example is sodium nitroprusside \(N a_{2}\left[F e(C N)_{5} N O\right] .2 H_{2} O\). The colour (brown - red) is again due to charge transfer. This complex has \(N O^{+}\) as a ligands and \(F e^{+}\) as the central metal ion. Thus, its IUPAC name should be sodium pentacyanidonitrosonium ferrat (II).
COORDINATION COMPOUNDS
28644
Pick out the complex compound in which the central metal atom obeys \(EAN\) rule strictly
1 \({K_4}[Fe{(CN)_6}]\)
2 \({K_3}[Fe{(CN)_6}]\)
3 \([Cr{({H_2}O)_6}]\,C{l_3}\)
4 \([Cu{(N{H_3})_4}]\,S{O_4}\)
Explanation:
(a) In complex \({K_4}[Fe\,{(CN)_6}]\) the \(Fe\) obey \(EAN \) rule strictly.
COORDINATION COMPOUNDS
28645
Which of the following is wrong statement
1 \(Ni{(CO)_4}\) has oxidation number \(+ 4 \) for \(Ni\)
2 \(Ni{(CO)_4}\) has zero oxidation number for \( Ni\)
28641
The \( EAN \) of iron in potassium ferricyanide is
1 \(18\)
2 \( 54\)
3 \(35\)
4 \(23\)
Explanation:
(c) \(EAN\) of a central metal ion $=$ (atomic no. of central atom) $ -$ oxidation state $ +$ no. of ligands \(× 2\) \( = 26 - 3 + (6 \times 2) = 23 + 12 = 35\)
COORDINATION COMPOUNDS
28642
In the coordination compound, \({K_4}[Ni{(CN)_4}]\) oxidation state of nickel is
1 \( - 1\)
2 \( 0\)
3 \( + 1\)
4 \( + 2\)
Explanation:
(b) \( + 1 \times 4 + x - 1 \times 4 = 0\) \(4 + x - 4 = 0 \Rightarrow x = 0\) for \(Ni.\)
COORDINATION COMPOUNDS
28643
According to \( IUPAC \) nomenclature sodium nitroprussied is named is
1 Sodium pentacyanidonitrosonium ferrat \((II)\)
2 Sodium nitroferricyanide
3 Sodium nitroferrocyanide
4 Sodium pentacyanonitrosyl ferrate \((II)\)
Explanation:
NO readily forms coordination complexes with transition metla ions. These complex are called nitrosyls. \(F^{2+}\) and NO form the complex \(\left[ Fe \left( H _{2} O \right)_{5} NO \right]^{2+}\) which is responsible for the colour in the brown ring test for nitrates. The colour is due to change transfer. This complex formally contains \(F e(+1)\) and \(N O^{+}\). Its magnetic moment is approximately \(3.9 BM ,\) confirming the presence of three - unpaired electrons. Note that \(N O^{+}\) is a strong field ligand, thus, it reshuffles the electronic configuration: \(F e^{+}\left(3 d^{6} 4 s^{1}\right) \rightarrow F e+\left(3 d^{7} 4 s^{0}\right)\) Most nitrosyl complexes are colourd. Another example is sodium nitroprusside \(N a_{2}\left[F e(C N)_{5} N O\right] .2 H_{2} O\). The colour (brown - red) is again due to charge transfer. This complex has \(N O^{+}\) as a ligands and \(F e^{+}\) as the central metal ion. Thus, its IUPAC name should be sodium pentacyanidonitrosonium ferrat (II).
COORDINATION COMPOUNDS
28644
Pick out the complex compound in which the central metal atom obeys \(EAN\) rule strictly
1 \({K_4}[Fe{(CN)_6}]\)
2 \({K_3}[Fe{(CN)_6}]\)
3 \([Cr{({H_2}O)_6}]\,C{l_3}\)
4 \([Cu{(N{H_3})_4}]\,S{O_4}\)
Explanation:
(a) In complex \({K_4}[Fe\,{(CN)_6}]\) the \(Fe\) obey \(EAN \) rule strictly.
COORDINATION COMPOUNDS
28645
Which of the following is wrong statement
1 \(Ni{(CO)_4}\) has oxidation number \(+ 4 \) for \(Ni\)
2 \(Ni{(CO)_4}\) has zero oxidation number for \( Ni\)
