1
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-
2
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
3
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
Which series of reactions correctly represents chemical relations related to iron and its compound?
A
Fe $$\buildrel {dil.\,{H_2}S{O_4}} \over \longrightarrow $$ FeSO4 $$\buildrel {{H_2}S{O_4},{O_2}} \over \longrightarrow $$ Fe2(SO4)3 $$\buildrel {heat} \over \longrightarrow $$ Fe
B
Fe $$\buildrel {{O_2} \, {, heat}} \over \longrightarrow $$ FeO $$\buildrel {dil.\,{H_2}S{O_4}} \over \longrightarrow $$ FeSO4 $$\buildrel {heat} \over \longrightarrow $$ Fe
C
Fe $$\buildrel {{Cl_2} \, {, heat}} \over \longrightarrow $$ FeCl3 $$\buildrel {heat, \, air} \over \longrightarrow $$ FeCl2 $$\buildrel {Zn} \over \longrightarrow $$ Fe
D
Fe $$\buildrel {{O_2},\,heat} \over \longrightarrow $$ Fe3O4 $$\buildrel {CO,\,{{600}^o}C} \over \longrightarrow $$ FeO $$\buildrel {CO,\,{{700}^o}C} \over \longrightarrow $$ Fe
4
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The correct statement for the molecule, CsI3 is :
A
it contains Cs3+ and I- ions.
B
it contains Cs+, I- and lattice I2 molecule.
C
it is a covalent molecule
D
it contains Cs+ and $$I_3^-$$ ions
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