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In recharging of the lead storage battery:
NET
NUST Entry Test
Chemistry
Electrochemistry
The most common fuel used in fuel cells are:
NET
NUST Entry Test
Chemistry
Electrochemistry
Fuel cells are mostly used in space aircrafts as the source of:
NET
NUST Entry Test
Chemistry
Electrochemistry
In Daniel cell, if salt bridge is removed between two half cells, the voltage:
NET
NUST Entry Test
Chemistry
Electrochemistry
A single cell voltage in lead storage battery is:
NET
NUST Entry Test
Chemistry
Electrochemistry
emf of the cell is:
NET
NUST Entry Test
Chemistry
Electrochemistry
A reaction will be spontaneous if its calculated emf is:
NET
NUST Entry Test
Chemistry
Electrochemistry
The standard reduction potential of silver is about 0.8V.This value gives information that:
NET
NUST Entry Test
Chemistry
Electrochemistry
The standard reduction potential of Zn is -0.76V.The standard oxidation potential of Zn will be:
NET
NUST Entry Test
Chemistry
Electrochemistry
Value of standard reduction potential for strong reducing agents is:
NET
NUST Entry Test
Chemistry
Electrochemistry
The overall positive values for the reaction potential predicts that process is energetically:
NET
NUST Entry Test
Chemistry
Electrochemistry
Standard hydrogen electrode has an arbitrarily fixed potential:
NET
NUST Entry Test
Chemistry
Electrochemistry
The difference of potential of two electrodes when concentration of solution is 1M each at $25\circC$ and 1 atm is called:
NET
NUST Entry Test
Chemistry
Electrochemistry
Which one of the following statement is incorrect about SHE (standard hydrogen electrode)
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NUST Entry Test
Chemistry
Electrochemistry
A half reaction can be defined as:
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NUST Entry Test
Chemistry
Electrochemistry
Reduction or oxidation potential of standard hydrogen electrode is:
NET
NUST Entry Test
Chemistry
Electrochemistry
Cell potential depends upon:
NET
NUST Entry Test
Chemistry
Electrochemistry
The best electrode used in salt bridge is KCl.Which other electrolyte can also be used for the purpose:
NET
NUST Entry Test
Chemistry
Electrochemistry
K, Ca and Li metals may be arranged in decreasing order of their reduction potential as:
NET
NUST Entry Test
Chemistry
Electrochemistry
When aluminium electrode is couples with copper electrode in a galvanic cell:
NET
NUST Entry Test
Chemistry
Electrochemistry
When fused $PbBr_{2}$ is electrolyzed:
NET
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Chemistry
Electrochemistry
The cell in which a non-spontaneous redox reaction takes place as a result of electricity is known as:
NET
NUST Entry Test
Chemistry
Electrochemistry
A cell which produces electrical current by an oxidation reduction reaction is called:
NET
NUST Entry Test
Chemistry
Electrochemistry
A cell in which electric current is produced as a result of spontaneous redox reaction is called:
NET
NUST Entry Test
Chemistry
Electrochemistry
Sodium can be obtained by:
NET
NUST Entry Test
Chemistry
Electrochemistry
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