1
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify pair of complexes that exhibits solvate isomerism.

A

$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3$ and $\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}\right] \mathrm{Cl}_2 \cdot \mathrm{H}_2 \mathrm{O}$

B

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{SO}_4\right] \mathrm{Br}$ and $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Br}\right] \mathrm{SO}_4$

C

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right]$ and $\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Co}(\mathrm{CN})_6\right]$

D

$\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{SCN}\right]^{+}$and $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NCS}^{+}\right.$

2
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the element from following such that the last electron is placed in $(\mathrm{n}-1) \mathrm{d}$ orbital.

A
Dy
B
Ag
C
Pu
D
Pa
3
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which transition series includes elements Co and Mo respectively?

A
4d and 5d
B
5d and 6d
C
3d and 4d
D
3d and 6d
4
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Rate law for the reaction,

$$ \mathrm{C}_2 \mathrm{H}_5 \mathrm{I}_{(\mathrm{g})} \longrightarrow \mathrm{C}_2 \mathrm{H}_{4(\mathrm{~g})}+\mathrm{HI}_{(\mathrm{g})} \text { is } \mathrm{r}=\mathrm{k}\left[\mathrm{C}_2 \mathrm{H}_5 \mathrm{I}\right] $$

What is the order and molecularity of this reaction?

A
order and molecularity both are 1
B
order is 1 and molecularity is 2
C
order and molecularity both are 2
D
order is 2 and molecularity is 1

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