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Topic 11: Redox and electrochemistry
18. Salt bridge, anode and cathode: Recalling concept facts and definitions
1. In voltaic cells, the function of the salt bridge is to
1) Permit the migration of ions
2) Permit the mixing of solutions
3) Prevent the migration of ions
4) Prevent the flow of ions
2. An electrochemical cell setup consists of two half cells connected by an external conductor and a
salt bridge. The function of the salt bridge is to
1) Block a path for the flow of electrons
2) Block a path for the flow of ions
3) Provide a path for the flow of electrons
Teacher Preview Copy
Teacher Preview Copy
4) Provide a path for the flow of ions
3. In both the voltaic and the electrolytic cell, the anode is the electrode at which
1) Reduction occurs and electrons are lost
2) Reduction occurs and electrons are gained
3) Oxidation occurs and electrons are lost
4) Oxidation occurs and electrons are gained
4. What occurs when an electrolytic cell is used for silver-plating a spoon?
1) A chemical reaction produces an electric current
2) An electric current produces a chemical reaction
3) An oxidation reaction takes place at the cathode
4) A reduction reaction takes place at the anode
5. In a voltaic cells, the positive electrode is the
1) Anode, at which reduction occurs
2) Anode, at which oxidation occurs
3) Cathode, at which reduction occurs
4) Cathode, at which oxidation occurs
6. The negative electrode in a chemical (voltaic) cell is the
1) Cathode, where electrons are gained
2) Cathode, where electrons are lost
3) Anode, where electrons are gained
4) Anode, where electrons are lost
7. In an electrolytic cell, the positive electrode is the
1) Anode, at which reduction occurs
2) Anode, at which oxidation occurs
3) Cathode, at which reduction occurs
4) Cathode, at which oxidation occurs
8. The negative electrode in all electrolytic cells is the
1) Cathode, at which reduction occurs
2) Cathode, at which oxidation occurs
3) Anode, at which reduction occurs
4) Anode, at which oxidation occurs
330 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic 11: Redox and electrochemistry
18. Salt bridge, anode and cathode: Recalling concept facts and definitions
1. In voltaic cells, the function of the salt bridge is to
1) Permit the migration of ions
2) Permit the mixing of solutions
3) Prevent the migration of ions
4) Prevent the flow of ions
2. An electrochemical cell setup consists of two half cells connected by an external conductor and a
salt bridge. The function of the salt bridge is to
1) Block a path for the flow of electrons
2) Block a path for the flow of ions
3) Provide a path for the flow of electrons
Teacher Preview Copy
Teacher Preview Copy
4) Provide a path for the flow of ions
3. In both the voltaic and the electrolytic cell, the anode is the electrode at which
1) Reduction occurs and electrons are lost
2) Reduction occurs and electrons are gained
3) Oxidation occurs and electrons are lost
4) Oxidation occurs and electrons are gained
4. What occurs when an electrolytic cell is used for silver-plating a spoon?
1) A chemical reaction produces an electric current
2) An electric current produces a chemical reaction
3) An oxidation reaction takes place at the cathode
4) A reduction reaction takes place at the anode
5. In a voltaic cells, the positive electrode is the
1) Anode, at which reduction occurs
2) Anode, at which oxidation occurs
3) Cathode, at which reduction occurs
4) Cathode, at which oxidation occurs
6. The negative electrode in a chemical (voltaic) cell is the
1) Cathode, where electrons are gained
2) Cathode, where electrons are lost
3) Anode, where electrons are gained
4) Anode, where electrons are lost
7. In an electrolytic cell, the positive electrode is the
1) Anode, at which reduction occurs
2) Anode, at which oxidation occurs
3) Cathode, at which reduction occurs
4) Cathode, at which oxidation occurs
8. The negative electrode in all electrolytic cells is the
1) Cathode, at which reduction occurs
2) Cathode, at which oxidation occurs
3) Anode, at which reduction occurs
4) Anode, at which oxidation occurs
330 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
