List of top Chemistry Questions on coordination compounds

Choose the incorrect statement.

Which of the following is an INCORRECT match?

Identify the complex which exhibits all 3 characteristics: paramagnetic; high spin configuration; octahedral geometry.

Which among the following is an ambidentate ligand?

Consider the following statements for [Ni(dmg)$_2$]: (A) It is a red coloured compound.
(B) It is readily soluble in water at pH = 9.
(C) Central metal ion has two unpaired electrons.
(D) It has four, 5-membered metal containing rings.

What is the coordination number of Fe in the complex \([Fe(C_2O_4)_3]^{3-}\)?

What is the coordination number of Cobalt in $[Co(en)_3]^{3+}$?

What is the oxidation state of Cobalt in \([Co(NH_3)_6]Cl_3\)?

The type of hybridisation of Co in \([CoF_6]^{3-}\) complex ion is

The EAN (Effective Atomic Number) of Iron in \([Fe(CN)_6]^{4-}\) is:

Which of the following is a didentate ligand?

The hybridisation involved in nickel of the complex ion \([Ni(CN)_4]^{2-}\) is.

In chemotherapy, the ligand used to remove the excess of copper is

What is the Effective Atomic Number (EAN) of $[Fe(CN)_6]^{4-}$?

Find the order of field strength
\( \text{CN}^- \), \( \text{SCN}^- \), \( \text{NCS}^- \), \( \text{S}^{2-} \), \( \text{OH}^- \)

The EAN of cobalt in the complex [Co(NH3)6]3+ is:

The EAN of cobalt in the complex \( \text{[Co(NH}_3\text{)}_6^{3+} \) is:

Hybridisation of $[Ni(CN)_4]^{2-}$ is

Given below are two statements:

Statement I: Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of sodium acetate and reaction of $CH_3MgBr$ with water.
Statement II: Methane cannot be prepared from unsaturated hydrocarbons and by Wurtz reaction.

In the light of the above statements, choose the correct answer from the options given below

Given below are two statements:

Statement I: 3-phenylpropene reacts with $HBr$ and gives secondary alkyl bromide having a chiral carbon atom as the major product.

Statement II: Aryl chlorides and aryl cyanides can be prepared by Sandmeyer reaction as well as Gattermann reaction.

In the light of the above statements, choose the correct answer from the options given below

5.33 gram of $CrCl_3 \cdot 6H_2O$ (1:3 electrolyte) is passed through cation exchanger. The resulting solution is then treated with an excess of $AgNO_3$, leading to formation of 8.61 gran of precipitate. Calculate :
$\frac{\text{number of moles of complex reacted}}{\text{number of moles of AgCl precipitated}} \times 100$

Find the correct match.

Column-I (Complex compound)	Column-II ($\Delta_0$ (CFSE) $\text{cm}^{-1}$)
(i) $[Cr(CN)_6]^{3-}$	(P) 17000
(ii) $[Cr(H_2O)_6]^{3+}$	(Q) 15000
(iii) $[Cr(en)_3]^{3+}$	(R) 12000
(iv) $[CrF_6]^{3-}$	(S) 20000

In potassium trioxalatoferrate(III), what are the primary and secondary valency of central atom respectively?

Which of the following statement is not applicable to Valence Bond Theory?

Consider a mixture $X$ which is made by dissolving $0.4$ mol of $[\mathrm{Co(NH_3)_5SO_4}]Br$ and $0.4$ mol of $[\mathrm{Co(NH_3)_5Br}]SO_4$ in water to make $4$ L of solution. When $2$ L of mixture $X$ is allowed to react with excess $\mathrm{AgNO_3}$, it forms precipitate $Y$. The rest $2$ L of mixture $X$ reacts with excess $\mathrm{BaCl_2}$ to form precipitate $Z$. Which of the following statements is CORRECT?