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Previous year question hub

Coordination Compounds - Inorganic Chemistry - Chemistry Previous Year Questions

Practice Coordination Compounds - Inorganic Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

9Papers
9Years
28Questions
1Topics

Coordination Compounds question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Coordination Compounds. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 28 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 28 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
28 Qs

Most asked topics

Top topics across the included previous year papers.

Inorganic Chemistry
28 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Coordination Compounds
28 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

KCET 2025
4 Qs
KCET 2024
3 Qs
KCET 2023
5 Qs
KCET 2022
3 Qs
KCET 2021
4 Qs
KCET 2020
3 Qs
KCET 2019
2 Qs
KCET 2018
1 Qs
KCET 2017
3 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
KCET 202520254View paper
KCET 202420243View paper
KCET 202320235View paper
KCET 202220223View paper
KCET 202120214View paper
KCET 202020203View paper
KCET 201920192View paper
KCET 201820181View paper
KCET 201720173View paper

All Coordination Compounds previous year questions

Practice every matching question in batches of 20, with every available option.

1
2017 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2017
The coordination number and the oxidation state of the. element ' $M$ ' in the complex $\left[\mathrm{M}(e n)_2\left(\mathrm{C}_2 \mathrm{O}_4\right)\right] \mathrm{NO}_2$ {where (en) is ethan1, 2-diamine) are respectively
A
6 and 3
B
4 and 3
C
6 and 2
D
4 and 2
Open complete paper
2
2017 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2017
Square planar complex of the type $M_{\text {AXBL }}$ (where $A, B, X$ and $L$ ) are unidenate ligands shows following set of isomers
A
two cis and one trans
B
two trans and one cis
C
two cis and two trans
D
three cis and one trans
Open complete paper
3
2017 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2017
According to crystal field theory, the $M-L$ bond in a complex is
A
partially covalent
B
purely ionic
C
purely covalent
D
purely coordinate
Open complete paper
4
2018 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2018
The IUPAC name of $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}$ is
A
tetraamminechloridonitrito- N -cobalt(III) chloride
B
tetraamminechloridonitrocobalt(II) chloride
C
tetraamminechloridonitrocobalt(I) chloride
D
tetraamminechloridonitrocobalt(III) chloride
Open complete paper
5
2019 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2019

The formula of pentaaquanitratochromium (III) nitrate is,

A
\(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\left(\mathrm{NO}_3\right)_3\right.\)
B
\(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\left(\mathrm{NO}_2\right)_2\right.\)
C
\(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NO}_3\right]\left(\mathrm{NO}_3\right)_2\)
D
\(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NO}_2\right] \mathrm{NO}_3\)
Open complete paper
6
2019 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2019

Which among the following is the strongest ligand?

A
\(\mathrm{CN}^{-}\)
B
\(\mathrm{NH}_3\)
C
\(\mathrm{CO}\)
D
\(\mathrm{En}\)
Open complete paper
7
2020 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2020

The coordination number of \(\mathrm{Fe}\) and \(\mathrm{Co}\) in the complex ions, \(\left.\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\) and \(\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}\) are respectively

A
3 and 4
B
6 and 8
C
4 and 6
D
6 and 4
Open complete paper
8
2020 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2020

Number of stereoisomers exhibited by \(\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}\) is

A
4
B
2
C
5
D
3
Open complete paper
9
2020 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2020

Give the IUPAC name of \(\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]\left[\mathrm{Pt} \mathrm{Cl}_4\right]\) is

A
tetraammine platinum \((0)\) tetrachlorido platinum (IV)
B
tetraammine palatinate(II)tetrachlorido platinum (II)
C
tetraammine palatinate \((0)\) tetrachlorido platinum (IV)
D
tetraammine platinum (II) tetrachlorido palatinate (II)
Open complete paper
10
2021 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2021

The IUPAC name of \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{CO}_3\right)\right] \mathrm{Cl}\) is

A
pentaamminecarbonatocobalt (III) chloride
B
carbonatopentamminecobalt (III) chloride
C
pentaamminecarbonatocobaltate (III) chloride
D
pentaammine cobalt (III) carbonate chloride
Open complete paper
11
2021 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2021

Homoleptic complexes among the following are

(A) \(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\)

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

(C) \(\mathrm{K}_2\left[\mathrm{Zn}(\mathrm{OH})_4\right]\)

A
A only
B
A and B only
C
A and C only
D
C only
Open complete paper
12
2021 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2021

For the crystal field splitting in octahedral complexes,

A
the energy of the \(e_g\) orbitals will decrease by \((3 / 5) \Delta_o\) and that of the \(t_{2 g}\) will increase by \((2 / 5) \Delta_0\)
B
the energy of the \(e_g\) orbitals will increase by \((3 / 5) \Delta_o\) and that of the \(t_{2 g}\) will decrease by \((2/5) \Delta_o\)
C
the energy of the \(e_g\) orbitals will increase by \((3 / 5) \Delta_o\) and that of the \(t_{2 g}\) will increase by \((2 / 5) \Delta_0\)
D
the energy of the \(e_g\) orbitals will decrease by \((3 / 5) \Delta_0\) and that of the \(t_{2 g}\) will decrease by \((2 / 5) \Delta_0\)
Open complete paper
13
2021 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2021

The correct order for wavelengths of light absorbed in the complex ions \(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\) and \(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\) is

A
\(\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\)
B
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}>\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}\)
C
\(\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}>\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\)
D
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}\)
Open complete paper
14
2022 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2022

The correct IUPAC name of cis-platin is

A
diamminedichloridoplatinum (IV)
B
diamminedichloridoplatinum (0)
C
dichloridodiammineplatinum (IV)
D
diamminedichloridoplatinum (II)
Open complete paper
15
2022 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2022

Crystal field splitting energy (CFSE) for \(\left[\mathrm{CoCl}_6\right]^{4-}\) is \(18000 \mathrm{~cm}^{-1}\). The crystal field splitting energy (CFSE) for \(\left[\mathrm{CoCl}_4\right]^{2-}\) will be

A
\(16000 \mathrm{~cm}^{-1}\)
B
\(8000 \mathrm{~cm}^{-1}\)
C
\(10000 \mathrm{~cm}^{-1}\)
D
\(18000 \mathrm{~cm}^{-1}\)
Open complete paper
16
2022 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2022

The complex hexamineplatinum(IV)chloride will give _____ number of ions on ionisation.

A
4
B
3
C
2
D
5
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17
2023 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2023

Which of the following is an organometallic compound

A
\(\mathrm{CH}_3 \mathrm{COONa}\)
B
\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{MgBr}\)
C
\(\left(\mathrm{CH}_3 \mathrm{COO}\right)_2 \mathrm{Ca}\)
D
\(\mathrm{CH}_3 \mathrm{ONa}\)
Open complete paper
18
2023 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2023

When \(\mathrm{FeCl}_3\) is added to excess of hot water gives a sol '\(X\)'. When \(\mathrm{FeCl}_3\) is added to \(\mathrm{NaOH}(a q)\) solution, gives sol '\(Y\)'

\(X\) and \(Y\) formed in the above processes respectively are

A
\(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{OH}^{-}\) and \(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{Fe}^{3+}\)
B
\(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{H}^{+}\) and \(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{Na}^{+}\)
C
\(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{Cl}^{-}\) and \(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{OH}^{-}\)
D
\(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{Fe}^{3+}\) and \(\mathrm{Fe}_2 \mathrm{O}_3 \cdot x \mathrm{H}_2 \mathrm{O} / \mathrm{OH}^{-}\)
Open complete paper
19
2023 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2023

Which formula and name combination is incorrect?

A
\(\mathrm{K}_3\left[\mathrm{Al}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]\) - Potassium trioxalatoaluminate (III)
B
\(\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}\left(\mathrm{NO}_2\right)\right]\) - Diamminechloridonitrito - N-platinum (II)
C
\(\left[\mathrm{CoCl}_2(\mathrm{en})_2\right] \mathrm{Cl}-\) Dichloridodiethylenediammine cobalt (II) chloride
D
\(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4\left(\mathrm{H}_2 \mathrm{O}\right) \mathrm{Cl}\right] \mathrm{Cl}_2-\) Tetraammineaquachloridocobalt (III) chloride
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20
2023 · Chemistry · Inorganic Chemistry · Coordination Compounds
KCET 2023

If a didentate ligand ethane-1, 2-diamine is progressively added in the molar ratio en : Ni :: 1: 1, 2 : 1, 3 : 1 to \(\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}\) aq solution, following co-ordination entities are formed.

I. \(\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_4 \mathrm{en}\right]^{2+}(a q)\) - pale blue

II. \(\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_2(\mathrm{en})_2\right]^{2+}(\mathrm{aq})\) - blue/purple

III. \(\left[\mathrm{Ni}(\mathrm{en})_3\right]^{2+}(\mathrm{aq})\) - violet

The wavelength in \(\mathrm{nm}\) of light absorbed in case of I and III are respectively

A
\(475 \mathrm{~nm}\) and \(310 \mathrm{~nm}\)
B
\(300 \mathrm{~nm}\) and \(475 \mathrm{~nm}\)
C
\(310 \mathrm{~nm}\) and \(500 \mathrm{~nm}\)
D
\(600 \mathrm{~nm}\) and \(535 \mathrm{~nm}\)
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Showing 20 of 28 questions