1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1 M is 100$$\Omega $$. The conductivity of this solution is 1.29 S m–1. Resistance of the same cell when filled with 0.2 M of the same solution is 520 $$\Omega $$, The molar conductivity of 0.02 M solution of the electrolyte will be
A
124 $$\times$$ 10–4 S m2 mol–1
B
1240 $$\times$$ 10–4 S m2 mol–1
C
1.24 $$\times$$ 10–4 S m2 mol–1
D
12.4 $$\times$$ 10–4 S m2 mol–1
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Given the data at 25oC,
Ag + I- $$\to$$ AgI + e- , Eo = 0.152 V
Ag $$\to$$ Ag+ + e-, Eo = -0.800 V
What is the value of log Ksp for AgI? (2.303 RT/F = 0.059 V)
A
–8.12
B
+8.612
C
–37.83
D
–16.13
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
The highest electrical conductivity of the following aqueous solutions is of :
A
0.1 M acetic acid
B
0.1 M chloroacetic acid
C
0.1 M fluoroacetic acid
D
0.1 M difluoroacetic acid
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Electrolyte: KCl KNO3 HCl NaOAc NaCl
$${ \wedge ^\infty }(Sc{m^2}mo{l^{ - 1}}):$$
149.9 145 426.2 91 126.5
Calculate $$ \wedge _{HOAc}^\infty $$ Using appropriate molar conductances of the electrolytes listed above at infinite dilution in H2O at 25oC
A
517.2
B
552.7
C
390.7
D
217.5

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