Coordination Compounds Questions

The correct order of the wavelength of light absorbed by the following complexes is,A. $[\text{Co}({\text{NH}}_3{)}_6{]}^{3+}$ B. $[\text{Co}(\text{CN}{)}_6{]}^{3-}$ C. $[\text{Cu}({\text{H}}_2\text{O}{)}_4{]}^{2+}$ D. $[\text{Ti}({\text{H}}_2\text{O}{)}_6{]}^{3+}$ Choose the correct answer from the options given below:

Out of the following complex compounds, which of the compound will be having the minimum conductance in solution?

Given below are two statements:Statement I: Ferromagnetism is considered as an extreme form of paramagnetism.Statement II: The number of unpaired electrons in a ${\text{Cr}}^{2+}$ ion ($Z=24$) is the same as that of a ${\text{Nd}}^{3+}$ ion ($Z=60$).In the light of the above statements, choose the correct answer from the options given below:

Which of the following are paramagnetic?A. $[NiC{l}_4{]}^{2-}$ B. $Ni(CO{)}_4$ C. $[Ni(CN{)}_4{]}^{2-}$ D. $[Ni(H_{2}O{)}_6{]}^{2+}$ E. $Ni(PP{h}_3{)}_4$ Choose the correct answer from the options given below:

Which one of the following is an inner orbital complex as well as diamagnetic in behaviour ?
(Atomic no. : Zn = 30, Cr = 24, Co = 27, Ni = 28)

Which one of the following is expected to exhibit optical isomerism ?
(en = ethylenediamine)

The complex $[\text{Pt}(\text{Py})({\text{NH}}_3)\text{BrCl}]$ will have how many geometrical isomers?

The complexes $[\text{Co}({\text{NH}}_3{)}_6][\text{Cr}(\text{CN}{)}_6]$ and $[\text{Cr}({\text{NH}}_3{)}_6][\text{Co}(\text{CN}{)}_6]$ are the examples of which type of isomerism?

The $d$ -electron configurations of ${\text{Cr}}^{2+},{\text{Mn}}^{2+},{\text{Fe}}^{2+}$ and ${\text{Co}}^{2+}$ are $d^4,d^5,d^6$ and $d^7$ respectively. Which one of the following will exhibit minimum paramagnetic behaviour?

Of the following complex ions, which is diamagnetic in nature?

Which of the following will give a pair of enantiomorphs? ($\text{en}={\text{NH}}_2{\text{CH}}_2{\text{CH}}_2{\text{NH}}_2$)

The $d$ -electron configurations of ${\text{Cr}}^{2+}$, ${\text{Mn}}^{2+}$, ${\text{Fe}}^{2+}$ and ${\text{Ni}}^{2+}$ are $3d^4$, $3d^5$, $3d^6$ and $3d^8$ respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?

An excess of ${\text{AgNO}}_3$ is added to $100\text{mL}$ of a $0.01\text{M}$ solution of $[\text{Cr}({\text{H}}_2\text{O}{)}_4{\text{Cl}}_2]\text{Cl}$. The number of moles of $\text{AgCl}$ precipitated would be:

Jahn-Teller effect is not observed in high spin complexes of:

The correct increasing order of trans-effect of the following species is:

Which of the following has longest $\text{C}-\text{O}$ bond length? (Free $\text{C}-\text{O}$ bond length in $\text{CO}$ is $1.128\text{A˚}$).

Number of possible isomers for the complex $[\text{Co}(en{)}_2{\text{Cl}}_2]\text{Cl}$ will be: ($en$ = ethylene diamine)

Red precipitate is obtained when ethanol solution of dimethylglyoxime (DMG) is added to ammoniacal $\text{Ni(II)}$. Which of the following statements is NOT true?

Low spin complex of $d^6$ -cation in an octahedral field will have the following energy: (${\Delta }_o$ = Crystal Field Splitting Energy, $P$ = Electron pairing energy)

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?

A magnetic moment of $1.73\text{BM}$ will be shown by:

The sum of coordination number and oxidation number of metal $\text{M}$ in the complex $[\text{M}(en{)}_2({\text{C}}_2{\text{O}}_4)]\text{Cl}$ (Where $en$ is ethylenediamine) is:

Among the following complexes, the one which shows Zero crystal field stabilisation energy (CFSE) is:

Magnetic moment $2.83\text{BM}$ is given by which of the following ions? (At. no. $\text{Ti}=22,\text{Cr}=24,\text{Mn}=25,\text{Ni}=28$)

Which of the following complexes is used as an anticancer agent?

The name of complex ion, $[\text{Fe}(\text{CN}{)}_6{]}^{3-}$ is:

The hybridization involved in complex $[\text{Ni}(\text{CN}{)}_4{]}^{2-}$ is: (Atomic number of $\text{Ni}=28$)

Which of the following complexes exhibits the highest paramagnetic behaviour?(At. number $\text{Ti}=22,\text{V}=23,\text{Fe}=26,\text{Co}=27$)

Which one of the following is an inner orbital complex as well as diamagnetic in behaviour ?

An aqueous solution of ${\text{CoCl}}_2$ on addition of excess of concentrated $\text{HCl}$ turns blue due to formation of:

In which of the following pairs both the complex's show optical isomerism?

The diamagnetic species is:

The correct order for the wavelength of absorption in the visible region is:

Assertion : Potassium ferrocyanide is diamagnetic whereas potassium ferricyanide is paramagnetic.Reason : Crystal field splitting in ferrocyanide ion is greater than that of ferricyanide ion.

Copper sulphate dissolves in excess of KCN to give :

$[\text{Co}({\text{NH}}_3{)}_4({\text{NO}}_2{)}_2]\text{Cl}$ exhibits :

$[\text{Cr}({\text{H}}_2\text{O}{)}_6]{\text{Cl}}_3$ (at. No. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of $3d$ electrons in the chromium of the complex is :

Which of the following carbonyls will have the strongest $\text{C}\text{–}\text{O}$ bond?

Out of ${\text{TiF}}_6^{2-}$, ${\text{CoF}}_6^{3-}$, ${\text{Cu}}_2{\text{Cl}}_2$ and ${\text{NiCl}}_4^{2-}$, the colourless species are:

Which of the following does not show optical isomerism?

Which of the following complex ions is expected to absorb visible light?

Which of the following ions will exhibit colour in aqueous solutions?

Which of the following complex ion is not expected to absorb visible light?

The existence of two different coloured complexes with the composition of $[{\text{Co(NH}}_3{)}_4{\text{Cl}}_2{]}^{+}$ is due to:

Crystal field stabilization energy for high spin $d^4$ octahedral complex is:

Which of the following complex compounds will exhibit highest paramagnetic behaviour?