IAT (IISER) 2024 | Coordination Compounds Question 2 | Chemistry

$$ \left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)\left(\mathrm{NH}_3\right)_5\right]^{3+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}, \text { and }\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-} $$

$\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)\left(\mathrm{NH}_3\right)_5\right]^{3+}$

$\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}$

$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$

$\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$

IAT (IISER) 2020

MCQ (Single Correct Answer)

-1

Which one of the following aqueous solutions gives the most intense colour?

$0.1 \mathrm{M}\left[\mathrm{Mn}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_2$

$0.1 \mathrm{M}\left[\mathrm{Mn}\left(\mathrm{NH}_3\right)_6\right] \mathrm{Cl}_3$

$0.1 \mathrm{M}\left[\mathrm{Mn}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}\right] \mathrm{Cl}$

$0.1 \mathrm{M} \mathrm{KMnO}_4$

IAT (IISER) 2020

MCQ (Single Correct Answer)

-1

$$ \text { The number of unpaired electron(s) in the square planar complex }[\text{Ni}(\text{CN})_4]^{2-} \text { is/are } $$ :

IAT (IISER) Subjects