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Harris Chapter 15 Potentiometry - Game 3
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Proper care of pH electrodes includes
 
All of the above
 
Keep the electrodes moist at all times
 
Store the electrode in a solution of 4 M KCl
 
Don't store in distilled or DI water - ions leach out
T/F A silver electrode cannot be used as an indicator electrode for Ag+ and Cl−
 
False
 
True
T/F While using reference electrodes, the internal liquid level should always be kept above that of the sample solution.
 
True
 
False
Calomel electrode can behave as which of the following components?
 
Anode or cathode
 
anode only
 
cathode only
 
salt bridge
Which of the following is known as calomel?
 
Mercury chloride
 
Silver chloride
 
potassium chloride
 
mercury sulfate
T/F If hydrogen electrode acts as cathode, hydrogen is reduced.
 
True
 
False
Hydrogen electrode which is the reference electrode can be used as which of the following?
 
Anode of Cathode
 
Anode
 
Cathode
 
Salt Bridge
In Hydrogen electrode, the electrode is placed in a solution of ____ M HCl.
 
1
 
0.5
 
Saturated
 
2
Which of the following is not the disadvantage of standard hydrogen electrode primary reference electrode?
 
It gives salt error
 
Platinum can be easily poisoned
 
H2 gas at 1 atmospheric pressure is difficult to set up and
 
Presence of oxidising agents alters the potential
Why is Standard hydrogen electrode called as the primary reference electrode?
 
Its output potential is zero volts
 
it has a known output potential
 
Its output potential is independent of sol'n composition
 
It has a constant output potential
Why is Standard hydrogen electrode called as the primary reference electrode?
 
ts output potential is dependent on the composition of the s
 
It must have a known output potential
 
It must have a constant output potential
 
It is employed in conjunction with the indicator or working
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