1
JEE Main 2024 (Online) 27th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify from the following species in which $$\mathrm{d}^2 \mathrm{sp}^3$$ hybridization is shown by central atom :

A
$$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$$
B
$$\mathrm{SF}_6$$
C
$$\left[\mathrm{Pt}\left(\mathrm{Cl}_4\right)\right]^{2-}$$
D
$$\mathrm{BrF}_5$$
2
JEE Main 2024 (Online) 27th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the following complex ions

$$\begin{aligned} & \mathrm{P}=\left[\mathrm{FeF}_6\right]^{3-} \\ & \mathrm{Q}=\left[\mathrm{V}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+} \\ & \mathrm{R}=\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+} \end{aligned}$$

The correct order of the complex ions, according to their spin only magnetic moment values (in B.M.) is :

A
R < Q < P
B
R < P < Q
C
Q < R < P
D
Q < P < R
3
JEE Main 2024 (Online) 27th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Yellow compound of lead chromate gets dissolved on treatment with hot $$\mathrm{NaOH}$$ solution. The product of lead formed is a :

A
Tetraanionic complex with coordination number six
B
Neutral complex with coordination number four
C
Dianionic complex with coordination number six
D
Dianionic complex with coordination number four
4
JEE Main 2023 (Online) 15th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The complex with highest magnitude of crystal field splitting energy $\left(\Delta_{0}\right)$ is :
A
$\left[\mathrm{Fe}\left(\mathrm{OH}_{2}\right)_{6}\right]^{3+}$
B
$\left[\mathrm{Mn}\left(\mathrm{OH}_{2}\right)_{6}\right]^{3+}$
C
$\left[\mathrm{Cr}\left(\mathrm{OH}_{2}\right)_{6}\right]^{3+}$
D
$\left[\mathrm{Ti}\left(\mathrm{OH}_{2}\right)_{6}\right]^{3+}$
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