COMEDK 2025 Evening Shift | Coordination Compounds Question 1 | Chemistry

A. $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$
B. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}$
C. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$
D. $\left[\mathrm{FeF}_6\right]^{3-}$

$\mathrm{D}<\mathrm{A}<\mathrm{B}<\mathrm{C}$

$\mathrm{B}<\mathrm{C}<\mathrm{A}<\mathrm{D}$

$\mathrm{D}<\mathrm{C}<\mathrm{B}<\mathrm{A}$

$\mathrm{A}<\mathrm{D}<\mathrm{C}<\mathrm{B}$

COMEDK 2025 Evening Shift

MCQ (Single Correct Answer)

-0

Which of the following compounds has electrons symmetrically distributed in both $\mathrm{t}_{2 \mathrm{~g}}$ and $\mathrm{e}_{\mathrm{g}}$ orbitals?

$\left[\mathrm{CoF}_6\right]^{3-}$

$\left[M n(C N)_6\right]^{4-}$

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

$\left[\mathrm{FeCl}_6\right]^{3-}$

COMEDK 2025 Evening Shift

MCQ (Single Correct Answer)

-0

Which of the coordination compounds [(i) to (v)] are used for the following processes :

A: Electroplating

B: Removal of excess copper from human body

C: Estimation of hardness of water

(i) DMG (ii) $\mathrm{Na}_2 \mathrm{EDTA}$ (iii) Cis-platin (iv) D-penicillamine (v) $\mathrm{K}\left[\mathrm{Au}(\mathrm{CN})_2\right]$

$\mathrm{A}=\mathrm{iv} \quad \mathrm{B}=\mathrm{i} \quad \mathrm{C}=\mathrm{iii}$

$A=i \quad B=i i i \quad C=i v$

$\mathrm{A}=\mathrm{v} \quad \mathrm{B}=\mathrm{iv} \quad \mathrm{C}=\mathrm{ii}$

$A=$ iii $\quad B=$ ii $\quad C=i$

COMEDK 2025 Afternoon Shift

MCQ (Single Correct Answer)

-0

Which one of the following structures in Column I does not have the correct IUPAC name as given in Column II.

S.No.	Structure		IUPAC name
A.	$\left[\mathrm{CoBr}_2(\mathrm{en})_2\right] \mathrm{Cl}$	P.	Dibromidodi-( ethan-1, 2 - diamine)cobalt (III) chloride
B.	$\mathrm{Na}\left[\mathrm{PtBrCl}\left(\mathrm{NO}_2\right)\left(\mathrm{NH}_3\right)\right]$	Q.	Sodium amminebromidochloridonitrito- N - palatinate(II)
C.	$\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_2\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}\right] \mathrm{SO}_4$	R.	Tetraamminediaquachloridochromium (III) sulphate.
D.	$\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]\left[\mathrm{PtCl}_4\right]$	S.	Tetraammineplatinum (II) tetrachloridoplatinate (II)

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