Dimethyl glyoxime forms a square planar complex with ${\mathrm{Ni}}^{2+}$. The complex should be:

What is the magnetic moment (spin only) and hybridisation of the brown ring complex $\left[\mathrm{Fe}({\mathrm{H}}_2\mathrm{O}{)}_5\mathrm{NO}\right]{\mathrm{SO}}_4$ ?

Choose incorrect stability order :

Aqueous solution of ${\mathrm{Ni}}^{2+}$ contains ${\left[\mathrm{Ni}({\mathrm{H}}_2\mathrm{O}{)}_6\right]}^{2+}$ and its magnetic moment is 2.83 BM. When ammonia is added in it, the magnetic moment of solution :

Which of the following is true about the complex $\left[{\mathrm{PtCl}}_2\right({\mathrm{H}}_2\mathrm{O}\left)\right({\mathrm{NH}}_3\left)\right]$ ?

Complex compound $\left[\mathrm{Cr}\right(\mathrm{NCS}\left)\right({\mathrm{NH}}_3{)}_5\left]\right[{\mathrm{ZnCl}}_4]$ will be:

An aqueous solution of titanium chloride, when subjected to magnetic measurement, measured to zero magnetic moment. Assuming the octahedral complex in aqueous solution, the formula of the complex is :

(a) $\left[\mathrm{Ti}\right({\mathrm{H}}_2\mathrm{O}{)}_6]{\mathrm{Cl}}_2$                            (b) $\left[\mathrm{Ti}\right({\mathrm{H}}_2\mathrm{O}{)}_6]{\mathrm{Cl}}_4$

(c) $\left[{\mathrm{TiCl}}_3\right({\mathrm{H}}_2\mathrm{O}{)}_3]$                             (d) $\left[{\mathrm{TiCl}}_2\right({\mathrm{H}}_2\mathrm{O}{)}_4]$

Which of the following pairs of complexes are isomeric with each other but their aqueous solutions exhibit different molar conductivities?

(a) $\left[{\mathrm{PtCl}}_2\right({\mathrm{NH}}_3{)}_4]{\mathrm{Br}}_2 \mathrm{and} [{\mathrm{PtBr}}_2\left({\mathrm{NH}}_3{)}_4\right]{\mathrm{Cl}}_2$ 

(b) $\left[{\mathrm{CoCl}}_2\right({\mathrm{NH}}_3{)}_4]{\mathrm{NO}}_2 \mathrm{and} [\mathrm{CoCl}\left({\mathrm{NO}}_2\right)\left({\mathrm{NH}}_3{)}_4\right]\mathrm{Cl}$

(c) $\left[\mathrm{Co}\right({\mathrm{NO}}_2\left)\right({\mathrm{NH}}_3{)}_5]{\mathrm{Cl}}_2 \mathrm{and} [\mathrm{Co}\left(\mathrm{ONO}\right)\left({\mathrm{NH}}_3{)}_4\right]{\mathrm{Cl}}_2$

(d) $\left[\mathrm{CoBr}\right({\mathrm{NH}}_3{)}_5]{\mathrm{SO}}_4 \mathrm{and} [\mathrm{Co}\left({\mathrm{SO}}_4\right)\left({\mathrm{NH}}_3{)}_5\right]\mathrm{Br}$

The two compounds pentaamminesulphatocobalt (III) bromide and pentaamminesulphatocobalt (III) chloride represent :

Select the correct code about complex $\left[\mathrm{Cr}\right({\mathrm{NO}}_2\left)\right({\mathrm{NH}}_3{)}_5\left]\right[{\mathrm{ZnCl}}_4]$ :

(I) IUPAC name of the compound is pentaamminenitrito-N-chromium(III) tetrachlorozincate(II)

(II) It shows geometrical isomerism

(III) It shows linkage isomerism

(IV) It shows coordination isomerism

(a) III,IV          (b) I,III and IV          (c) II,III and IV       (d) I,II,III and IV

In the isoelectronic series of metal carbonyl, the CO bond strength is expected to increase in the order:

Which is not true about metal carbonyls?

$\left[\mathrm{Fe}\right({\mathrm{H}}_2\mathrm{O}{)}_6{]}^{2+} \mathrm{and} \left[\mathrm{Fe}\right(\mathrm{CN}{)}_6{]}^{4-}$ differ in :

Which of the following complexes have a maximum number of unpaired electrons?

(a) $\left[\mathrm{Ni}\right(\mathrm{CO}{)}_4]$                                (b) $\left[\mathrm{Co}\right({\mathrm{NH}}_3{)}_4({\mathrm{NO}}_2{)}_2{]}^{+}$

(c) $\left[\mathrm{Ag}\right(\mathrm{CN}{)}_2{]}^{-}$                              (d) $[{\mathrm{CuBr}}_4{]}^{2-}$

The degeneracy of d-orbitals is lost under:

(I) Strong field ligand                 (II) Weak field ligand

(III) Mixed field ligand                 (IV) Chelate

Choose the correct code:

Which of the following isomerism, exhibited by $\left[{\mathrm{CrCl}}_2\right(\mathrm{OH}{)}_2\left({\mathrm{NH}}_3{)}_2\right]$?

How many geometrical isomers and stereoisomers are possible for $\left[\mathrm{Pt}\right({\mathrm{NO}}_2\left)\right({\mathrm{NH}}_3\left)\right({\mathrm{NH}}_2\mathrm{OH}\left)\right(\mathrm{Py}){]}^{+ }\mathrm{and} [\mathrm{Pt}\left(\mathrm{Br}\right)\left(\mathrm{Cl}\right)\left(\mathrm{I}\right)\left({\mathrm{NO}}_2\right)\left({\mathrm{NH}}_3\right)\left(\mathrm{Py}\right)]$    respectively?

 A compound that form two stereoisomer is -

(I) $\left[\mathrm{Cr}\right({\mathrm{NO}}_3{)}_3\left({\mathrm{NH}}_3{)}_3\right]$     

(II) ${\mathrm{K}}_3\left[\mathrm{Fe}\right({\mathrm{C}}_2{\mathrm{O}}_4{)}_3]$

(III) $\left[{\mathrm{CoCl}}_2\right(\mathrm{en}{)}_2{]}^{+}$       

(IV) $\left[\mathrm{CoBrCl}\right(\mathrm{ox}{)}_2{]}^{3-}$

Three arrangements are shown for the complex $\left[{\mathrm{CoBr}}_2\right({\mathrm{NH}}_3{)}_2\left(\mathrm{en}\right){]}^{\oplus }$. Which one is wrong statement?

A complex with the composition $[{\mathrm{MA}}_3\mathrm{B}{]}^{\mathrm{n}\pm }$ is found to have no geometrical isomers. The possible structures (s) of the complex is (Where A and B are monodentate ligands)

Complexes formed in the following methods are:

(I) Mond's process for purification of nickel

(II) Removal of unreacted AgBr from photographic plate

(III) Removal of lead poisoning from the body

Options are as follows: 

$$\begin{gathered} \mathrm{I} \mathrm{II} \mathrm{III} \\ \left(\mathrm{a}\right) \mathrm{Ni}(\mathrm{CO}{)}_{4 } [\mathrm{Ag}(\mathrm{CN}{)}_2{]}^{-} [\mathrm{Pb}\left(\mathrm{EDTA}\right){]}^{2-} \\ \left(\mathrm{b}\right) \mathrm{Ni}(\mathrm{CO}{)}_4 [\mathrm{Ag}({\mathrm{S}}_2{\mathrm{O}}_3{)}_2{]}^{3- } [\mathrm{Pb}\left(\mathrm{EDTA}\right){]}^{2-} \\ \left(\mathrm{c}\right) \mathrm{Ni}(\mathrm{CO}{)}_6 [\mathrm{Ag}\left({\mathrm{S}}_2{\mathrm{O}}_3\right){]}^{3-} \left[\mathrm{Pb}\right(\mathrm{EDTA}\left){]}^{4-} \\ \right(\mathrm{d}) \mathrm{Ni}(\mathrm{CO}{)}_6 \left[\mathrm{Ag}\right({\mathrm{S}}_2{\mathrm{O}}_3){]}^{-} \left[\mathrm{Pb}\right(\mathrm{EDTA}){]}^{4-} \end{gathered}$$

The correct name for the complex ion $\left[\mathrm{CoCl}\right(\mathrm{ONO}\left)\right(\mathrm{en}{)}_2{]}^{+}$ is:

Which of the following ligand does not as $\mathrm{\pi }$-acid ligand?

(a) ${\mathrm{N}}_2$           (b) CO              (c) ${\mathrm{C}}_2{\mathrm{H}}_4$                 (d) ${\mathrm{O}}_2^{2-}$

$\left[\mathrm{Mn}\right(\mathrm{CO}{)}_4\mathrm{NO}]$ is diamagnetic because:

Choose the correct option regarding the following complex compound which follows (F) and does not follow (NF) the Sidgwick EAN rule:

(I) $\left[\right({\mathrm{Ph}}_3\mathrm{P}{)}_2{\mathrm{PdCl}}_2{\mathrm{PdCl}}_2]$                     (II) $\left[\mathrm{NiBrCl}\right(\mathrm{en}\left)\right]$

(III) ${\mathrm{Na}}_4\left[\mathrm{Fe}\right(\mathrm{CN}{)}_5\mathrm{NOS}]$                       (IV) $\mathrm{Cr}\left(\mathrm{CO}{)}_3\right(\mathrm{NO}{)}_2$

        (I)    (II)    (III)    (IV)                       (I)    (II)    (III)     (IV) 

(a)    NF   NF      NF       NF                 (b)    F       F        NF        F

(c)     NF   NF      F          F                  (d)   NF      NF      F          NF 

Which of the following statement is not correct ?

(a) Bis(glycinato)Zinc(II) is optically active

(b) $[{\mathrm{NiCl}}_4{]}^{2- }\mathrm{and} [{\mathrm{PtCl}}_4{]}^{2-}$ have different shape

(c) $\left[\mathrm{Ni}\right(\mathrm{CN}{)}_4{]}^{4-}$ is square planar complex

(d) $\left[\mathrm{Ni}\right(\mathrm{CN}{)}_4{]}^{2- }\mathrm{and} \left[\mathrm{Ni}\right(\mathrm{CO}{)}_4]$ have the same magnetic moment

Give the correct of initial T or F for following statements. Use T is statement is true and F if it is false

(I) Co(III) is stabilised in presence of weak ligands , while Co(II) is stabilised in presence of strong field ligand.

(II) Four coordinated complexes of Pd(II) and Pt(II) are diamagnetic and square planar.

(III) $\left[\mathrm{Ni}\right(\mathrm{CN}{)}_4{]}^{4-}$ ion and $\left[\mathrm{Ni}\right(\mathrm{CO}{)}_4]$ are diamagnetic tetrahedral and square planar.

(IV) ${\mathrm{Ni}}^{2+}$ ion does not form inner orbital octahedral complexes.

Match List-I with List-II and select the correct answer using the codes given below :

                      List-I                                              List-II

(I) $[{\mathrm{FeF}}_6{]}^{3-}$                                                   (A) 1.73 BM

(II) $\left[\mathrm{Ti}\right({\mathrm{H}}_2\mathrm{O}{)}_6{]}^{3+}$                                             (B) 5.93 BM

(III) $\left[\mathrm{Cr}\right({\mathrm{NH}}_3{)}_6{]}^{3+}$                                            (C) 0.00 BM

(IV) $\left[\mathrm{Ni}\right({\mathrm{H}}_2\mathrm{O}{)}_6{]}^{2+}$                                             (D) 2.83 BM

(V)  $\left[\mathrm{Fe}\right(\mathrm{CN}{)}_6{]}^{4-}$                                               (E) 3.88 BM

          (I)    (II)   (III)   (IV)   (V)                       (I)    (II)   (III)   (IV)   (V) 

Set of d-orbitals which is used by central metal during formation of ${\mathrm{MnO}}_4^{-}$?

${\mathrm{FeSO}}_4$ is a very good absorber for NO, the new compound formed by this process is found to contain number of unpaired electrons: