WB JEE 2026 | Coordination Compounds Question 1 | Chemistry

WB JEE 2026

MCQ (Single Correct Answer)

-0.25

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

(i) < (ii) < (iii) < (iv)

(i) < (ii) < (iv) < (iii)

(i) $<$ (iv) $<$ (iii) $<$ (ii)

(iii) $<$ (iv) $<$ (ii) $<$ (i)

WB JEE 2026

MCQ (Single Correct Answer)

-0.25

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

2.73 BM

1.73 BM

3.23 BM

0.00 BM

WB JEE 2026

MCQ (Single Correct Answer)

-0.5

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

$6,3,6,0$

$6,2,6,0$

$7,2,6,2$

$6,2,7,0$

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

Which of the following statements is incorrect?

$${[V{F_6}]^{3 - }}$$ is paramagnetic with 2 unpaired electrons.

$${[CuC{l_4}]^{2 - }}$$ is paramagnetic with 1 unpaired electron.

$${[Co{(N{H_3})_6}]^{3 + }}$$ is diamagnetic

$${[Co{F_6}]^{3 - }}$$ is paramagnetic with 2 unpaired electrons.

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