1
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the four ligands is :
A
L3 < L2 < L4 < L1
B
L1 < L2 < L4 < L3
C
L4 < L3 < L2 < L1
D
L1 < L3 < L2 < L4
2
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The equation which is balanced and represents the correct product(s) is :
A
[Mg (H2O)6 ]2+ + (EDTA)4- $$\buildrel {excess\,NaOH} \over \longrightarrow $$ [Mg (EDTA) ]2+ + 6H2O
B
CuSO4 + KCN $$\to$$ K2 [Cu (CN)4] + K2SO4
C
Li2O + 2KCl $$\to$$ 2LiCl + K2O
D
[CoCl(NH3)5]+ + 5H+ $$\to$$ Co2+ + $$5NH_4^+$$ + Cl-
3
JEE Main 2013 (Offline)
MCQ (Single Correct Answer)
+4
-1
Which of the following complex species is not expected to exhibit optical isomerism?
A
[Co (en)2 Cl2]-
B
[Co (NH3)3 Cl3]
C
[Co (en) (NH3)2 Cl2]+
D
[Co (en)3]3+
4
AIEEE 2012
MCQ (Single Correct Answer)
+4
-1
Which among the following will be named as dibromidobis (ethylene diamine) chromium(III) bromide?
A
[Cr (en)3 ] Br3
B
[Cr (en)2 Br2 ] Br
C
[Cr (en) Br4 ]-
D
[Cr (en) Br2 ] Br
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