JEE Main 2024 (Online) 9th April Evening Shift | Coordination Compounds Question 1 | Chemistry

1

JEE Main 2024 (Online) 9th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List I with List II

	LIST I		LIST II
A.	$$\mathrm{K}_2\left[\mathrm{Ni}(\mathrm{CN})_4\right]$$	I.	$$sp^3$$
B.	$$\left[\mathrm{Ni}(\mathrm{CO})_4\right]$$	II.	$$sp^3d^2$$
C.	$$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$$	III.	$$dsp^2$$
D.	$$\mathrm{Na}_3\left[\mathrm{CoF}_6\right]$$	IV.	$$d^2sp^3$$

Choose the correct answer from the options given below:

A

A-III, B-II, C-IV, D-I

B

A-III, B-I, C-II, D-IV

C

A-I, B-III, C-II, D-IV

D

A-III, B-I, C-IV, D-II

2

JEE Main 2024 (Online) 9th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

The coordination environment of $$\mathrm{Ca}^{2+}$$ ion in its complex with $$\mathrm{EDTA}^{4-}$$ is :

A

trigonal prismatic

B

octahedral

C

square planar

D

tetrahedral

3

JEE Main 2024 (Online) 9th April Morning Shift

MCQ (Single Correct Answer)

+4

-1

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The total number of geometrical isomers shown by $$[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2]^{+}$$ complex ion is three.

Reason (R): $$[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2]^{+}$$ complex ion has an octahedral geometry.

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

A

(A) is correct but (R) is not correct

B

(A) is not correct but (R) is correct

C

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

D

Both (A) and (R) are correct and (R) is the correct explanation of (A)

4

JEE Main 2024 (Online) 8th April Evening Shift

MCQ (Single Correct Answer)

+4

-1

Match List I with List II

	LIST I (Complex ion)		LIST II (Spin only magnetic moment in B.M.)
A.	$$ \left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{3+} $$	I.	4.90
B.	$$ \left[\mathrm{NiCl}_4\right]^{2-} $$	II.	3.87
C.	$$ \left[\mathrm{CoF}_6\right]^{3-} $$	III.	0.0
D.	$$ \left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-} $$	IV.	2.83

Choose the correct answer from the options given below :

A

(A)-(IV), (B)-(III), (C)-(I), (D)-(II)

B

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)

C

(A)-(I), (B)-(IV), (C)-(II), (D)-(III)

D

(A)-(II), (B)-(IV), (C)-(I), (D)-(III)