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1
KCET 2021
MCQ (Single Correct Answer)
+1
-0

The correct order for wavelengths of light absorbed in the complex ions $$\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$$ and $$\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$$ is

A
$$\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$$
B
$$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}>\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}$$
C
$$\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}>\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$$
D
$$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}>\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$$
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

The coordination number of $$\mathrm{Fe}$$ and $$\mathrm{Co}$$ in the complex ions, $$\left.\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}$$ and $$\left[\mathrm{Co}(\mathrm{SCN})_4\right]^{2-}$$ are respectively

A
3 and 4
B
6 and 8
C
4 and 6
D
6 and 4
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

Number of stereoisomers exhibited by $$\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right]^{+}$$ is

A
4
B
2
C
5
D
3
4
KCET 2020
MCQ (Single Correct Answer)
+1
-0

Give the IUPAC name of $$\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]\left[\mathrm{Pt} \mathrm{Cl}_4\right]$$ is

A
tetraammine platinum $$(0)$$ tetrachlorido platinum (IV)
B
tetraammine palatinate(II)tetrachlorido platinum (II)
C
tetraammine palatinate $$(0)$$ tetrachlorido platinum (IV)
D
tetraammine platinum (II) tetrachlorido palatinate (II)
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