Electrochemical Cells
Physics ⇒ Electricity and Magnetism
Electrochemical Cells starts at 10 and continues till grade 12.
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See sample questions for grade 10
A student connects a voltmeter across the electrodes of a galvanic cell and observes a reading of 1.1 V. What does this value represent?
A student sets up a cell with magnesium and copper electrodes. Which electrode will act as the anode?
Describe the main difference between a galvanic cell and an electrolytic cell.
Describe the main difference between a primary and a secondary cell.
A cell is constructed with a silver electrode in 1 M AgNO3 and a copper electrode in 1 M CuSO4. If E°(Ag+/Ag) = +0.80 V and E°(Cu2+/Cu) = +0.34 V, what is the standard cell potential?
A student connects a voltmeter across the electrodes of a galvanic cell and observes a reading of 1.1 V. What does this value represent?
A student sets up a cell with magnesium and copper electrodes. Which electrode will act as the anode?
Calculate the cell potential for a cell made of Zn and Cu electrodes, given that E°(Zn2+/Zn) = -0.76 V and E°(Cu2+/Cu) = +0.34 V.
In a Daniell cell, which metal acts as the anode?
(1) Copper
(2) Zinc
(3) Silver
(4) Iron
Which of the following best describes an electrochemical cell?
(1) A device that converts chemical energy into electrical energy
(2) A device that converts electrical energy into chemical energy
(3) A device that stores mechanical energy
(4) A device that produces heat from light energy
Which of the following is a common electrolyte used in a dry cell?
(1) Sodium chloride
(2) Potassium hydroxide
(3) Ammonium chloride
(4) Sulfuric acid
Which of the following is a correct statement about the anode in an electrolytic cell?
(1) It is positive and oxidation occurs there
(2) It is negative and reduction occurs there
(3) It is positive and reduction occurs there
(4) It is negative and oxidation occurs there
Fill in the blank: In an electrochemical cell, the _______ is the site of oxidation.
Fill in the blank: The electrode where reduction occurs in an electrolytic cell is called the _______.
Fill in the blank: The gain of electrons is called _______.
Fill in the blank: The process of loss of electrons is called _______.
State whether the following statement is true or false: In an electrolytic cell, the cathode is negative.
True or False: In a galvanic cell, the anode is the electrode where oxidation occurs.
True or False: In a galvanic cell, the cathode is positive relative to the anode.
True or False: In an electrolytic cell, oxidation occurs at the anode and reduction at the cathode.
