JEE Main 2024 (Online) 1st February Evening Shift | Coordination Compounds Question 31 | Chemistry | JEE Main - ExamSIDE.com

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1

JEE Main 2024 (Online) 1st February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following compounds show colour due to d-d transition?

A

$\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$

B

$\mathrm{CuSO}_4 \cdot 5 \mathrm{H}_2 \mathrm{O}$

C

$\mathrm{KMnO}_4$

D

$\mathrm{K}_2 \mathrm{CrO}_4$

2

JEE Main 2024 (Online) 1st February Morning Shift

MCQ (Single Correct Answer)

+4

-1

Which of the following complex is homoleptic?

A

$\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}_2\right]$

B

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]^{+}$

C

$\left[\mathrm{Fe}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right]^{+}$

D

$\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$

3

JEE Main 2024 (Online) 1st February Morning Shift

MCQ (Single Correct Answer)

+4

-1

Given below are two statements :

Statement (I) : A solution of $\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$ is green in colour.

Statement (II) : A solution of $\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$ is colourless.

In the light of the above statements, choose the most appropriate answer from the options given below :

A

Statement I is incorrect but Statement II is correct

B

Both Statement I and Statement II are correct

C

Both Statement I and Statement II are incorrect

D

Statement I is correct but Statement II is incorrect

4

JEE Main 2024 (Online) 31st January Evening Shift

MCQ (Single Correct Answer)

+4

-1

Select the option with correct property -

A

$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ and $$\left[\mathrm{NiCl}_4\right]^{2-}$$ both Paramagnetic

B

$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ and $$\left[\mathrm{NiCl}_4\right]^{2-}$$ both Diamagnetic

C

$$\left[\mathrm{NiCl}_4\right]^{2-}$$ Diamagnetic, $$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ Paramagnetic

D

$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$ Diamagnetic, $$\left[\mathrm{NiCl}_4\right]^{2-}$$ Paramagnetic

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