Co-ordination compounds practice · Medium

According to $CFT$, both high-spin and low-spin octahedral complexes are not possible for the configuration.

Which of the following are false about $\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right] \mathrm{SO}_4$ ?

I. It is paramagnetic with one unpaired electron in the $d$-subshell.

II. Its aqueous solution cannot conduct electricity.

III. It gives white $\mathrm{BaCl}_2$ solution.

IV. It is a square planar complex.

Choose the correct option.

Which of the following do not Obeys Sidwick's rule of EAN

Assertion: In zieses salt coordination no. of $Pt$ is five.
Reason: Ethene is monodentate ligand.

Which of the following will not show geometrical isomerism?

The $d -$electron configurations of $\mathrm{C}{\mathrm{r}^{2 + }},\mathrm{\;M}{\mathrm{n}^{2 + }},\mathrm{\;F}{\mathrm{e}^{2 + }}$ and $\mathrm{C}{\mathrm{o}^{2 + }}$ are ${d^4},{d^5},{d^6}\;and\;{d^7}$ respectively. Which one of the following will exhibit minimum paramagnetic behaviour?
(At. Nos.$\mathrm{Cr} = 24,\mathrm{\;Mn} = 25,\mathrm{\;Fe} = 26,\mathrm{\;Co} = 27$)

The coordination number and oxidation state of central atom for $\left[{TiF}_9\right]^{6-}$ are respectively

Which of the following complex does not show geometrical isomerism?

Mercuric chloride is soluble in ${KI}$ solution due to:

Which of the following does not show optical isomerism?

Which of the following is a square planar complex?

When an aqueous solution of copper (II) sulphate is saturated with ammonia, the blue compound crystallises on evaporation. The formula of this blue compound is:

The CFSE for octahedral ${\left[ {CoC{l_6}} \right]^{4 + }}$ is 18,000 $c{m^{ - 1}}$. The CFSE for tetrahedral ${\left[ {COC{l_4}} \right]^{2 - }}$ will be

Consider the following statements: According to the Werner's theory.
(1) Ligands are connected to the central metal ions by ionic bonds.
(2) Secondary valencies have directional properties
(3) Secondary valencies are non-ionisable
The correct statements are:

Assertion :- Ethanol cannot show position isomerism.

Reason :- Ethanol cannot show isomerism.

Which of the following 0.1 M complex compound solutions will have the minimum electrical conductivity?

Given below are two statements:

Statement (I): A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.

Statement (II): A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colourless.

In the light of the above statements, choose the most appropriate answer from the options given below:

Which of the following has the highest molar conductivity in solution?

Assertion: $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$ is more paramagnetic than $\left[\mathrm{FeF}_6\right]^{3-}$.

Reason: $[\mathrm{FeF} 6]^{3-}$ has more number of unpaired electrons.

Which is high spin complex?

The crystal field splitting energy for $\mathrm{Cr}^{+3}$ ion in an octahedral field increases for the ligands $\mathrm{I}^{-}, \mathrm{H}_2 \mathrm{O}, \mathrm{NH}_3$, $\mathrm{CN}^{-}$and the order is such that

A s- block element (M) reacts with oxygen to form an oxide of the formula $M{O_2}.$ The oxide is pale yellow in colour and paramagnetic. The element(M) is

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

Among the complex ions given below which is/are outer - orbital's complex

I) $\left[\mathrm{Co}(\mathrm{CN})_6\right]^{4-}$

II) $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{+2}$

III) $\left[\mathrm{FeF}_6\right]^{3-}$

IV) $\left[\mathrm{CoF}_6\right]^{3-}$

Select the correct statement set?

A) Bis-(glycinato) Zinc (II) is optically active

B) $\left[{NiCl}_4\right]^{2-}$ and $\left[{PtCl}_4\right]^{2-}$ differ in shapes

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

D) cis-$\left[{Co}\left({NH}_3\right)_2({en})_2\right]$ cannot show optical activity

Comment on the magnetic behavior of $\mathrm{K}_2\left[\mathrm{NiF}_6\right]$ and $\mathrm{K}_4\left[\mathrm{NiF}_6\right]$.

Specify the coordination number of the metal in $\left[{CoBr}_2(\text { en })_2\right]^{+}$

Maximum $\mathrm{C}-\mathrm{O}$ bond length present in:

S-I: ${K}_3\left[{Fe}({CN})_6\right]$ is a low spin complex.

S-II: ${Fe}^{3+}$ ion in this complex undergoes $s p^3 d^2$ hybridization.

For the square planar complex $[M\mathrm{ }(a)(b)(c)(d)]$ (where , $M\mathrm{ } =$ central metal and $a,\mathrm{ }b,\mathrm{ }c,$ and $d$ are monodentate ligands), the number of possible geometrical isomers are