1
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1

Which of the following is not an ambidentate ligand?

A
$$ \mathrm{C}_2 \mathrm{O}_4^{2-} $$
B
SCN$$^-$$
C
NO$$_2^-$$
D
CN$$^-$$
2
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1

$$\left[\mathrm{Mn}_2(\mathrm{CO})_{10}\right]$$ and $$\left[\mathrm{Co}_2(\mathrm{CO})_8\right]$$ structures have

A. Metal-Metal linkage

B. Terminal CO groups

C. Bridging CO groups

D. Metal in zero oxidation state

Choose the correct answer from the options given below

A
Only A, B, C
B
Only B, C, D
C
Only A, C, D
D
Only A, B, D
3
NEET 2024
MCQ (Single Correct Answer)
+4
-1

Match List I with List II.

List I
(Complex)
List II
(Type of isomerism)
A. $$
\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2
$$
I. Solvate isomerism
B. $$
\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br}
$$
II. Linkage isomerism
C. $$
\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]
$$
III. Ionization isomerism
D. $$
\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3
$$
IV. Coordination isomerism

Choose the correct answer from the options given below:

A
A-II, B-III, C-IV, D-I
B
A-I, B-III, C-IV, D-II
C
A-I, B-IV, C-III, D-II
D
A-II, B-IV, C-III, D-I
4
NEET 2024
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement I: Both $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ and $$[\mathrm{CoF}_6]^{3-}$$ complexes are octahedral but differ in their magnetic behaviour.

Statement II: $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ is diamagnetic whereas $$[\mathrm{CoF}_6]^{3-}$$ is paramagnetic.

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

A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is true but Statement II is false
D
Statement I is false but Statement II is true
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