The following ligand is:

Important Questions on Coordination Compounds

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 8th April 2019 Shift 1>Q 27

The correct order of the spin –only magnetic moment of metal ions in the following low-spin complexes, ${\left[\mathrm{V}{\left(\mathrm{C}\mathrm{N}\right)}_6\right]}^{4-},{\left[\mathrm{F}\mathrm{e}{\left(\mathrm{C}\mathrm{N}\right)}_6\right]}^{4-},{\left[\mathrm{R}\mathrm{u}{\left(\mathrm{N}{\mathrm{H}}_3\right)}_6\right]}^{3+}$ and ${\left[\mathrm{C}\mathrm{r}{\left(\mathrm{N}{\mathrm{H}}_3\right)}_6\right]}^{2+},$ is:

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 8th April 2018>Q 28

Consider the following reaction and statements:

${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_4{\mathrm{Br}}_2\right]}^{+}+{\mathrm{Br}}^{-}\to \left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_3{\mathrm{Br}}_3\right]+{\mathrm{NH}}_3$

(i) Two isomers are produced if the reactant complex ion is a cis-isomer.

(ii) Two isomers are produced if the reactant complex ion is a trans-isomer.

(iii) Only one isomer is produced if the reactant complex ion is a trans-isomer.

(iv) Only one isomer is produced if the reactant complex ion is a cis-isomer.

The correct statements are

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 7th January 2020 Shift 2>Q 29

The number of possible optical isomers for the complexes ${\mathrm{M}\mathrm{A}}_2{\mathrm{B}}_2$ with $\mathrm{s}{\mathrm{p}}^3$ and $\mathrm{d}\mathrm{s}{\mathrm{p}}^2$ hybridized metal atom, respectively, is:
Note: $\mathrm{A}$ and $\mathrm{B}$ are unidentate neutral and unidentate monoanionic ligands, respectively.

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 7th January 2020 Shift 1>Q 30

The IUPAC name of the complex $\left[\mathrm{P}\mathrm{t}{\left(\mathrm{N}{\mathrm{H}}_3\right)}_2\mathrm{C}\mathrm{l}\left(\mathrm{N}{\mathrm{H}}_2\mathrm{C}{\mathrm{H}}_3\right)\right]\mathrm{C}\mathrm{l}$ is

HARD

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 7th January 2020 Shift 1>Q 31

The theory that can completely/properly explain the nature of bonding in $\left[\mathrm{Ni}{\left(\mathrm{CO}\right)}_4\right]$ is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 7th April 2013>Q 32

Which of the following complex species is not expected to exhibit optical isomerism?

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 6th April 2014>Q 33

The octahedral complex of a metal ion ${\mathrm{M}}^{3+}$ with four monodentate ligands ${\mathrm{L}}_1, {\mathrm{L}}_2, {\mathrm{L}}_3 \mathrm{and} {\mathrm{L}}_4$ absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 20 - Coordination Compounds>JEE Main - 6 September 2020 Shift 2>Q 34

For a ${\mathrm{d}}^4$ metal ion in an octahedral field, the correct electronic configuration is :