JEE Main 2024 (Online) 5th April Morning Shift | Coordination Compounds Question 21 | Chemistry | JEE Main - ExamSIDE.com

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1

JEE Main 2024 (Online) 5th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

The correct order of ligands arranged in increasing field strength.

A

$$\mathrm{F}^{-}<\mathrm{Br}^{-}<\mathrm{I}^{-}<\mathrm{NH}_3$$

B

$$\mathrm{H}_2 \mathrm{O}<\mathrm{^{-}OH}<\mathrm{CN}^{-}<\mathrm{NH}_3$$

C

$$\mathrm{Br}^{-}<\mathrm{F}^{-}<\mathrm{H}_2 \mathrm{O}<\mathrm{NH}_3$$

D

$$\mathrm{Cl}^{-}<\mathrm{^{-}OH}<\mathrm{Br}^{-}<\mathrm{CN}^{-}$$

2

JEE Main 2024 (Online) 5th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

Which one of the following complexes will exhibit the least paramagnetic behaviour ? [Atomic number, $$\mathrm{Cr}=24, \mathrm{Mn}=25, \mathrm{Fe}=26, \mathrm{Co}=27$$]

A

$$\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$$

B

$$\left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$$

C

$$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$$

D

$$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$$

3

JEE Main 2024 (Online) 4th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

If an iron (III) complex with the formula $$\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_x(\mathrm{CN})_y\right]^-$$ has no electron in its $$e_g$$ orbital, then the value of $$x+y$$ is

A

6

B

4

C

3

D

5

4

JEE Main 2024 (Online) 4th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

The number of unpaired d-electrons in $$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$$ is ________.

A

0

B

2

C

1

D

4

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