(a)
Interpretation:
The direction of electron flow in external circuit has to be identified.
Concept Introduction:
An
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
Redox reaction: Redox reaction is a type of
(b)
Interpretation:
The half-cell at which oxidation occurs has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
Anode: The electrode where the oxidation occurs is called as an anode. It is negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is positively a charged electrode.
Redox reaction: Redox reaction is a type of chemical reaction, where both the oxidation and reduction occur at the same time. In a redox reaction, one of the reactant is oxidized and the other is reduced simultaneously.
(c)
Interpretation:
The half-cell at which the electrons enter has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(d)
Interpretation:
The electrode at which electrons are consumed has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Oxidation - Loss of electrons by a species.
(e)
Interpretation:
The negatively charged electrode has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(f)
Interpretation:
The electrode that decreases in mass during the operation of given cell has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(g)
Interpretation:
The electrolyte solution in cathode compartment has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(h)
Interpretation:
The ion pairs suitable for salt bridge has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(i)
Interpretation:
For which electrode the inactive material could be used has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(j)
Interpretation:
The direction at which anion movement occur within the salt bridge in order to maintain the neutrality has to be identified.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
(k)
Interpretation:
The balanced half reactions and the overall cell reaction has to be indicated.
Concept Introduction:
An electrochemical cell is a device in which a redox reaction is used to convert chemical energy into electrical energy. Such device is also known as the galvanic or voltaic cell.
Galvanic cell consists of two half-cells. The redox reaction occurs in these half-cells. The half-cell in which the reduction reaction occurs is known as the reduction half-cell, whereas the half-cell in which the oxidation reaction occurs is known as the oxidation half-cell.
The electrons flow from anode to cathode through the external wire of the circuit. A salt bridge is used to complete the cell circuit.
Salt bridge: It is a U-shaped tube filled with concentrated solution of inert electrolytes such as
Anode: The electrode where the oxidation occurs is called as an anode. It is a negatively charged electrode.
Cathode: The electrode where reduction occurs is called as a cathode. It is a positively charged electrode.
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Chemistry: The Molecular Nature of Matter and Change
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