Welcome to your Grade 10 Chemistry chapter 4
After carefully reading the following 30 questions, choose the correct answer.
1.
Which type of electrochemical cell uses electrical energy to drive a non-spontaneous chemical reaction?
2.
In a voltaic cell, at which electrode does oxidation occur?
3.
What is the charge of the anode in an electrolytic cell?
4.
Which of the following is correct regarding the cathode in a voltaic cell?
5.
What component of a voltaic cell maintains electrical neutrality by allowing ions to migrate?
6.
In the electrolysis of molten binary salts, where is the metal deposited?
7.
Which of these is a common application of electrolysis?
8.
What electrolyte is used in a standard automobile lead-acid battery?
9.
In a Leclanche cell (dry cell), what substance acts as the cathode?
10.
Which of the following is true for an electrolytic cell?
11.
What is the voltage delivered by a single cell in a typical automobile battery?
12.
During the electrolysis of water, which gas is produced at the anode?
13.
Which process involves covering a metal with a thin layer of another metal using electricity?
14.
In the Daniel cell, which metal serves as the anode?
15.
What happens to the oxidation number of an element during reduction?
16.
Which device is used to measure the potential difference between two electrodes?
17.
In the electrolysis of brine, which of the following is produced at the cathode?
18.
Which of these is a secondary (rechargeable) cell?
19.
The direction of electron flow in a voltaic cell is:
20.
What is the purpose of the MnO2 in a dry cell?
21.
Which electrode is considered the "negative" pole in a voltaic cell?
22.
What type of energy conversion occurs in a voltaic cell?
23.
In an electrolytic cell used for copper refining, the pure copper is used as the:
24.
Which of the following ions is most easily reduced in an aqueous solution?
25.
What gas is evolved at the anode during the electrolysis of molten NaCl?
26.
The process of loss of electrons is called:
27.
Which of the following is NOT a component of a voltaic cell?
28.
In an electrochemical cell, where do cations migrate?
29.
What happens at the anode of a lead-acid battery during discharge?
30.
Which rule determines the preferred reaction at electrodes during the electrolysis of aqueous solutions?
