(a)
Interpretation:
Whether the statement the cathode is thenegative electrode in both voltaic and electrolyticcells correct or wrong should be explained.
Concept introduction:
Both voltaic and electrolytic cells are chemical cells.
In an
If oxidation takes place on an electrode, that electrode is called as anode. The species in that electrode remove electrons an oxidize itself.
If reduction takes place on an electrode, that electrode is called as cathode. The species in that electrode absorbs electrons and reduced itself.
(b)
Interpretation:
Whether the statement the function of a salt bridge is to permit themigration of electrons between the half-cell compartments of an electrochemical cell. correct or wrong should be explained.
Concept introduction:
In an electrochemical cell there are two electrodes can be observed. Electrodes are named according to their tendency to oxidation or reduction take place there. If oxidation takes place on an electrode, that electrode is called as anode. If reduction takes place on an electrode, that electrode is called as cathode.
To complete the circuit the two solution that contain the two electrodes should be connected by electrically.
In a complete electrochemical cell charged are carried in between solution via the migration of ions that are present in the solutions.
Therefore, a wire connection cannot be used to connect the two solution.
(c)
Interpretation:
Whether the statement the anode isthe negative electrode in a voltaic cell correct or wrong should be explained.
Concept introduction:
In an electrochemical cell there are two electrodes can be observed. Electrodes are named according to their tendency to oxidation or reduction take place there.
If oxidation takes place on an electrode, that electrode is called as anode. The species in that electrode remove electrons an oxidize itself.
If reduction takes place on an electrode, that electrode is called as cathode. The species in that electrode absorbs electrons and reduced itself.
In a voltaic cell anode is negative charge and cathode is positive charge.
(d)
Interpretation:
Whether the statement Electronsleave the cell from either the cathode or the
anode, depending on what electrodes are used. correct or wrong should be explained.
Concept introduction:
In an electrochemical cell there are two electrodes can be observed. Electrodes are named according to their tendency to oxidation or reduction take place there.
If oxidation takes place on an electrode, that electrode is called as anode. The species in that electrode remove electrons an oxidize itself.
If reduction takes place on an electrode, that electrode is called as cathode. The species in that electrode absorbs electrons and reduced itself.
(e)
Interpretation:
Whether the statement Reduction occurs at the cathode in both voltaicand electrolytic cells correct or wrong should be explained.
Concept introduction:
In an electrochemical cell there are two electrodes can be observed. Electrodes are named according to their tendency to oxidation or reduction take place there.
If oxidation takes place on an electrode, that electrode is called as anode. The species in that electrode remove electrons an oxidize itself.
If reduction takes place on an electrode, that electrode is called as cathode. The species in that electrode absorbs electrons and reduced itself.
(f)
Interpretation:
Whether the statement If
Concept introduction:
Voltaic cell is an electrochemical cell which produce electrical energy via a
Voltaic cell converts chemical energy to electrical energy and an electrolytic cell is opposite of this.
In both the two cells oxidation takes place on an electrode, that electrode is called as anode. Reduction takes place on an electrode, that electrode is called as cathode.
(g)
Interpretation:
Whether the statement the cell reaction is an oxidation−reduction reactioncorrect or wrong should be explained.
Concept introduction:
In an electrochemical cell there are two electrodes can be observed. Electrodes are named according to their tendency to oxidation or reduction take place there.
If oxidation takes place on an electrode, that electrode is called as anode. The species in that electrode remove electrons an oxidize itself.
If reduction takes place on an electrode, that electrode is called as cathode. The species in that electrode absorbs electrons and reduced itself.
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Check out a sample textbook solutionChapter 19 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
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