1
IIT-JEE 2011 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0.75
Consider the following cell reaction:
2Fe(s) + O2(g) + 4H+(aq) $$\to$$ 2Fe2+ (aq) + 2H2O (l); Eo = 1.67 V
At [Fe2+] = 10-3 M, P(O2) = 0.1 atm and pH = 3, the cell potential at 25oC is
A
1.47 V
B
1.77 V
C
1.87 V
D
1.57 V
2
IIT-JEE 2011 Paper 2 Offline
MCQ (More than One Correct Answer)
+3
-0.75
For the first order reaction
2N2O5 (g) $$\to$$ 4NO2 (g) + O2 (g)
A
the concentration of the reactant decreases exponentially with time
B
the half-life of the reaction decreases with increasing temperature
C
the half-life of the reaction depends on the initial concentration of the reactant
D
the reaction proceeds to 99.6% completion in eight half-life duration
3
IIT-JEE 2011 Paper 2 Offline
MCQ (Single Correct Answer)
+1
-0.25
Oxidation states of the metal in the minerals haematite and magnetite, respectively are
A
II, III in haematite and III in magnetite
B
II, III in haematite and II in magnetite
C
II in haematite and II, III in magnetite
D
III in haematite and II, III in magnetite
4
IIT-JEE 2011 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

Among the following complexes (K-P),

K3[Fe(CN)6] (K), [Co(NH3)6]Cl3 (L), Na3[Co(oxalate)3] (M), [Ni(H2O)3]Cl2 (N), K2[Pt(CN)4] (O) and [Zn(H2O)6(NO3)2] (P)

The diamagnetic complexes are

A
K, L, M, N
B
K, M, O, P
C
L, M, O, P
D
L, M, N, O
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