WB JEE 2026 | Coordination Compounds Question 2 | Chemistry

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WB JEE 2026

MCQ (Single Correct Answer)

-0.25

The calculated magnetic moment for low spin $[\operatorname{Ru}(E D T A)]^{-}$is

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.

WB JEE 2023

MCQ (Single Correct Answer)

-0.25

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

5.9 BM, 1.732 BM

4.89 BM, 1.732 BM

3.87 BM, 1.732 BM

1.732 BM, 2.82 BM

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