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1
MHT CET 2024 15th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What type of hybridization is present in $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ complex?

A
$\mathrm{d}^2 \mathrm{sp}{ }^3$
B
$\mathrm{sp}^3 \mathrm{~d}^2$
C
$\mathrm{sp}^3$
D
$\mathrm{dsp}^3$
2
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is a correct stability order of complex formed by metal ions if the ligand remains same?

A
$\mathrm{Fe}^{2+}>\mathrm{Mn}^{2+}>\mathrm{Co}^{2+}$
B
$\mathrm{Co}^{2+}>\mathrm{Fe}^{2+}>\mathrm{Mn}^{2+}$
C
$\mathrm{Co}^{2+}>\mathrm{Mn}^{2+}>\mathrm{Fe}^{2+}$
D
$\mathrm{Fe}^{2+}>\mathrm{Co}^{2+}>\mathrm{Mn}^{2+}$
3
MHT CET 2024 15th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of electrons lost by Cr in a complex $\left[\mathrm{Cr}(\mathrm{CO})_6\right]$ ?

A
0
B
4
C
6
D
2
4
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is a correct decreasing order of thermodynamic stability of the complexes?

A
$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Ag}(\mathrm{CN})_2\right]^{-}>\left[\mathrm{Cu}(\mathrm{CN})_4\right]^{2-}$
B
$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Cu}(\mathrm{CN})_4\right]^{2-}>\left[\mathrm{Ag}(\mathrm{CN})_2\right]^{-}$
C
$\left[\mathrm{Ag}(\mathrm{CN})_2\right]^{-}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Cu}(\mathrm{CN})_4\right]^{2-}$
D
$\left[\mathrm{Cu}(\mathrm{CN})_4\right]^{2-}>\left[\mathrm{Ag}(\mathrm{CN})_2\right]^{-}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$
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