JEE Main 2023 (Online) 11th April Evening Shift | Coordination Compounds Question 58 | Chemistry

Spin only magnetic moment of $$\mathrm{Fe}$$ in $$\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}$$ and $$\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}$$ complexes respectively is :

3.87 B.M. and 1.732 B.M.

5.92 B.M. and 1.732 B.M.

6.92 B.M. in both

4.89 B.M. and 6.92 B.M.

JEE Main 2023 (Online) 11th April Morning Shift

MCQ (Single Correct Answer)

-1

The complex that dissolves in water is :

$$\mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$$

$$\left(\mathrm{NH}_{4}\right)_{3}\left[\mathrm{As}\left(\mathrm{Mo}_{3} \mathrm{O}_{10}\right)_{4}\right]$$

$$\mathrm{K}_{3}\left[\mathrm{Co}\left(\mathrm{NO}_{2}\right)_{6}\right]$$

$$\left[\mathrm{Fe}_{3}(\mathrm{OH})_{2}(\mathrm{OAc})_{6}\right] \mathrm{Cl}$$

JEE Main 2023 (Online) 11th April Morning Shift

MCQ (Single Correct Answer)

-1

The set which does not have ambidentate ligand(s) is :

$$\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}, \mathrm{NO}_{2}{ }^{-}, \mathrm{NCS}^{-}$$

$$\mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$$, ethylene diammine, $$\mathrm{H}_{2} \mathrm{O}$$

$$\mathrm{NO}_{2}^{-}, \mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$$, EDTA $$^{4-}$$

$$\mathrm{EDTA}^{4-}, \mathrm{NCS}^{-}, \mathrm{C}_{2} \mathrm{O}_{4}{ }^{2-}$$

JEE Main 2023 (Online) 11th April Morning Shift

MCQ (Single Correct Answer)

-1

Which of the following complex has a possibility to exist as meridional isomer?

$$\mathrm{[Pt(NH_3)_2Cl_2]}$$

$$\left[\mathrm{Co}(\mathrm{en})_{2} \mathrm{Cl}_{2}\right]$$

$$\left[\mathrm{Co}(\mathrm{en})_{3}\right]$$

$$\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{3}\left(\mathrm{NO}_{2}\right)_{3}\right]$$

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