1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
For the cell reaction
2Fe3+(aq) + 2I (aq) $$ \to $$ 2Fe2+(aq) + I2(aq)
$${E_{cell}^\Theta }$$ = 0.24 V at 298 K. The standard Gibbs energy ($$\Delta $$rGo) of the cell reaction is :
[Given that Faraday constant F = 96500 C mol–1]
A
46.32 kJ mol–1
B
23.16 kJ mol–1
C
–46.32 kJ mol–1
D
–23.16 kJ mol–1
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Consider the change in oxidation state of bromine corresponding to different emf values as shown in the given diagram : NEET 2018 Chemistry - Electrochemistry Question 15 English
Then the species undergoing disproportionation is :
A
BrO4
B
BrO3
C
Br2
D
HBrO
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
In the electrochemical cell :
$$Zn\left| {ZnS{O_4}\left( {0.01\,M} \right)} \right|$$$$\left| {CuS{O_4}\left( {1.0M} \right)} \right|Cu,$$
the emf of this Daniell cell is E1. When the concentration of ZnSO4 is changed to 1.0 M and that of CuSO4 changed to 0.01 M, the emf changes to E2. From the followings, which one is the relationship between E1 and E2? (Given, RT/F = 0.059)
A
E1 < E2
B
E1 > E2
C
E2 = 01E1
D
E1 = E2
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
The molar conductivity of a 0.5 mol/dm3 solution of AgNO3 with electrolytic conductivity of 5.76 $$ \times $$ 10$$-$$3 S cm$$-$$1 at 298 K is
A
2.88 S cm2/mol
B
11.52 S cm2/mol
C
0.086 S cm2/mol
D
28.8 S cm2/mol
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