Types of Galvanic Cell (HSC SSCE Chemistry): Quizzes
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10 questions from this quiz
What are the three main types of electrodes used in galvanic cells?
What are the three main types of electrodes used in galvanic cells?
Metal-ion, inert conductor, gas
In a metal in metal ion electrode, what role does the metal play?
In a metal in metal ion electrode, what role does the metal play?
Both conductor and reactant
Which materials are typically used as inert conductors in electrodes?
Which materials are typically used as inert conductors in electrodes?
Platinum or graphite
At which electrode does oxidation occur in a galvanic cell?
At which electrode does oxidation occur in a galvanic cell?
The anode (negative terminal)
At which electrode does reduction occur in a galvanic cell?
At which electrode does reduction occur in a galvanic cell?
The cathode (positive terminal)
Which direction do electrons flow in the external circuit of a galvanic cell?
Which direction do electrons flow in the external circuit of a galvanic cell?
From negative to positive
Why must oxidation and reduction occur at different locations in a galvanic cell?
Why must oxidation and reduction occur at different locations in a galvanic cell?
To force electrons through external circuit
What is the primary function of a salt bridge in a galvanic cell?
What is the primary function of a salt bridge in a galvanic cell?
Provides electrical contact between solutions
Why do ions migrate through solutions and salt bridges in a galvanic cell?
Why do ions migrate through solutions and salt bridges in a galvanic cell?
To maintain electrical neutrality
In a gas electrode, where do gas molecules gain or lose electrons?
In a gas electrode, where do gas molecules gain or lose electrons?
At the platinum surface