MCQ (Single Correct Answer)

1

The correct order of conductivity of $0.001(\mathrm{M})$ separate aqueous solutions of $\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_4(\mathrm{i})$; $\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$ (ii); $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl}$ (iii) and $\mathrm{K}_2 \mathrm{PtCl}_6$ (iv) each containing octahedral complex species is

WB JEE 2026
2

The calculated magnetic moment for low spin $[\operatorname{Ru}(E D T A)]^{-}$isWB JEE 2026 Chemistry - Coordination Compounds Question 1 English

WB JEE 2026
3

For the metal complex $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{SO}_4\right] \mathrm{Br}$ ,coordination number,oxidation number,number of $d$-electrons and number of unpaired $d$-electrons are respectively

WB JEE 2026
4

Which of the following statements is incorrect?

WB JEE 2023
5

The calculated spin-only magnetic moment values in BM for $$\mathrm{[FeCl_4]^-}$$ and $$\mathrm{[Fe(CN)_6]^{3-}}$$ are

WB JEE 2023
6

The correct statement about the magnetic properties of $${\left[ {Fe{{(CN)}_6}} \right]^{3 - }}$$ and $${\left[ {Fe{F_6}} \right]^{3 - }}$$ is

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7

Nickel combines with a uninegative monodentate ligand (X$$^-$$) to form a paramagnetic complex [NiX$$_4$$]$$^{2-}$$. The hybridisation involved and number of unpaired electrons present in the complex are respectively

WB JEE 2023
8

Sodium nitroprusside is :

WB JEE 2022
9

Choose the correct statement for the [Ni(CN)4]2$$-$$ complex ion (Atomic no. of Ni = 28)

WB JEE 2022
10
A solution is made by a concentrated solution of Co(NO3)2 with a concentrated solution of NaNO2 is 50% acetic acid. A solution of a salt containing metal M is added to the mixture, when a yellow precipitate is formed. Metal 'M' is
WB JEE 2021
11
Indicate the number of unpaired electrons in K3[Fe(CN)6] and K4[Fe(CN)6].
WB JEE 2021
12
Which of the following compounds have magnetic moment identical with [Cr(H2O)6]3+ ?
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13
Indicate the correct IUPAC name of the coordination compound shown in the figure.
WB JEE 2020 Chemistry - Coordination Compounds Question 22 English
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14
The conductivity measurement of a coordination compound of cobalt (III) shows that it dissociates into 3 ions in solution. The compound is
WB JEE 2019
15
The main reason that SiCl4 is easily hydrolysed as compared to CCl4 is that
WB JEE 2018
16
Silver chloride dissolves in excess of ammonium hydroxide solution. The cation present in the resulting solution is
WB JEE 2018
17
Ferric ion forms a Prussian blue precipitate due to the formation of
WB JEE 2018
18
The number of unpaired electrons in $${[NiC{l_4}]^{2 - }}$$, $$Ni{(CO)_4}$$ and $${[Cu{(N{H_3})_4}]^{2 + }}$$ respectively are
WB JEE 2017

MCQ (More than One Correct Answer)