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Multiple-choice question
NETNUST Entry TestChemistryElectrochemistry
Which of the following elements has the same oxidation number in all of its known compounds:
NETNUST Entry TestChemistryElectrochemistry
Fuel cells are the means by which chemical energy may be converted into:
NETNUST Entry TestChemistryElectrochemistry
In lead accumulator (storage battery) cathode is made of:
NETNUST Entry TestChemistryElectrochemistry
Which one of the following is a correct statement about battey and cell?
NETNUST Entry TestChemistryElectrochemistry
Lead storage battery is recharged by:
NETNUST Entry TestChemistryElectrochemistry
Which statement is incorrect for fuel cells?
NETNUST Entry TestChemistryElectrochemistry
In recharging of the lead storage battery:
NETNUST Entry TestChemistryElectrochemistry
The most common fuel used in fuel cells are:
NETNUST Entry TestChemistryElectrochemistry
Fuel cells are mostly used in space aircrafts as the source of:
NETNUST Entry TestChemistryElectrochemistry
In Daniel cell, if salt bridge is removed between two half cells, the voltage:
NETNUST Entry TestChemistryElectrochemistry
A single cell voltage in lead storage battery is:
NETNUST Entry TestChemistryElectrochemistry
emf of the cell is:
NETNUST Entry TestChemistryElectrochemistry
A reaction will be spontaneous if its calculated emf is:
NETNUST Entry TestChemistryElectrochemistry
The standard reduction potential of silver is about 0.8V.This value gives information that:
NETNUST Entry TestChemistryElectrochemistry
The standard reduction potential of Zn is -0.76V.The standard oxidation potential of Zn will be:
NETNUST Entry TestChemistryElectrochemistry
Value of standard reduction potential for strong reducing agents is:
NETNUST Entry TestChemistryElectrochemistry
The overall positive values for the reaction potential predicts that process is energetically:
NETNUST Entry TestChemistryElectrochemistry
Standard hydrogen electrode has an arbitrarily fixed potential:
NETNUST Entry TestChemistryElectrochemistry
The difference of potential of two electrodes when concentration of solution is 1M each at $25\circC$ and 1 atm is called:
NETNUST Entry TestChemistryElectrochemistry
Which one of the following statement is incorrect about SHE (standard hydrogen electrode)
NETNUST Entry TestChemistryElectrochemistry
A half reaction can be defined as:
NETNUST Entry TestChemistryElectrochemistry
Reduction or oxidation potential of standard hydrogen electrode is:
NETNUST Entry TestChemistryElectrochemistry
Cell potential depends upon:
NETNUST Entry TestChemistryElectrochemistry
The best electrode used in salt bridge is KCl.Which other electrolyte can also be used for the purpose:
NETNUST Entry TestChemistryElectrochemistry