329921
The most common dry cell is the Leclanche cell. It consists of a carbon (graphite) rod as cathode which is surrounded by powdered ____ and carbon black.
1 MnO
2 \(\mathrm{Mn}_{2} \mathrm{O}_{5}\)
3 \(\mathrm{MnO}_{2}\)
4 \(\mathrm{Mn}_{3} \mathrm{O}_{4}\)
Explanation:
The cathode is surrounded by a paste of manganese dioxide \(\left(\mathrm{MnO}_{2}\right)\), ammonium chloride and zinc chloride.
CHXII03:ELECTROCHEMISTRY
329922
Assertion : A battery is used as a source of electrical energy. Reason : A battery may have one or more than one cell connected in series.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
A battery, functioning as a galvanic cell, converts chemical energy from redox reactions into electrical energy, creating an electromotive force (emf) that, when harnessed across terminals, supplies voltage to power diverse devices. So, option (2) is correct.
CHXII03:ELECTROCHEMISTRY
329923
When lead accumulator is charged, it is
1 An electrolytic cell
2 A galvanic cell
3 A Daniel cell
4 None of these
Explanation:
It behaves as electrolytic cell.
CHXII03:ELECTROCHEMISTRY
329925
While charging the lead storage battery
1 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is reduced to Pb.
2 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is reduced to Pb.
3 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is oxidised to Pb.
4 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is oxidised to \({\rm{Pb}}{{\rm{O}}_{\rm{2}}}\).
Explanation:
Lead storage battery is an example of Secondary cells. The following reaction takes place at anode during charging the battery, \({\rm{PbS}}{{\rm{O}}_{\rm{4}}} + {\rm{2e}} \to {\rm{P}}{{\rm{b}}_{\left( {\rm{s}} \right)}}\)
CHXII03:ELECTROCHEMISTRY
329926
The reaction which is taking place in nickel-cadmium battery can be represented by which of the following equation?
329921
The most common dry cell is the Leclanche cell. It consists of a carbon (graphite) rod as cathode which is surrounded by powdered ____ and carbon black.
1 MnO
2 \(\mathrm{Mn}_{2} \mathrm{O}_{5}\)
3 \(\mathrm{MnO}_{2}\)
4 \(\mathrm{Mn}_{3} \mathrm{O}_{4}\)
Explanation:
The cathode is surrounded by a paste of manganese dioxide \(\left(\mathrm{MnO}_{2}\right)\), ammonium chloride and zinc chloride.
CHXII03:ELECTROCHEMISTRY
329922
Assertion : A battery is used as a source of electrical energy. Reason : A battery may have one or more than one cell connected in series.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
A battery, functioning as a galvanic cell, converts chemical energy from redox reactions into electrical energy, creating an electromotive force (emf) that, when harnessed across terminals, supplies voltage to power diverse devices. So, option (2) is correct.
CHXII03:ELECTROCHEMISTRY
329923
When lead accumulator is charged, it is
1 An electrolytic cell
2 A galvanic cell
3 A Daniel cell
4 None of these
Explanation:
It behaves as electrolytic cell.
CHXII03:ELECTROCHEMISTRY
329925
While charging the lead storage battery
1 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is reduced to Pb.
2 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is reduced to Pb.
3 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is oxidised to Pb.
4 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is oxidised to \({\rm{Pb}}{{\rm{O}}_{\rm{2}}}\).
Explanation:
Lead storage battery is an example of Secondary cells. The following reaction takes place at anode during charging the battery, \({\rm{PbS}}{{\rm{O}}_{\rm{4}}} + {\rm{2e}} \to {\rm{P}}{{\rm{b}}_{\left( {\rm{s}} \right)}}\)
CHXII03:ELECTROCHEMISTRY
329926
The reaction which is taking place in nickel-cadmium battery can be represented by which of the following equation?
329921
The most common dry cell is the Leclanche cell. It consists of a carbon (graphite) rod as cathode which is surrounded by powdered ____ and carbon black.
1 MnO
2 \(\mathrm{Mn}_{2} \mathrm{O}_{5}\)
3 \(\mathrm{MnO}_{2}\)
4 \(\mathrm{Mn}_{3} \mathrm{O}_{4}\)
Explanation:
The cathode is surrounded by a paste of manganese dioxide \(\left(\mathrm{MnO}_{2}\right)\), ammonium chloride and zinc chloride.
CHXII03:ELECTROCHEMISTRY
329922
Assertion : A battery is used as a source of electrical energy. Reason : A battery may have one or more than one cell connected in series.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
A battery, functioning as a galvanic cell, converts chemical energy from redox reactions into electrical energy, creating an electromotive force (emf) that, when harnessed across terminals, supplies voltage to power diverse devices. So, option (2) is correct.
CHXII03:ELECTROCHEMISTRY
329923
When lead accumulator is charged, it is
1 An electrolytic cell
2 A galvanic cell
3 A Daniel cell
4 None of these
Explanation:
It behaves as electrolytic cell.
CHXII03:ELECTROCHEMISTRY
329925
While charging the lead storage battery
1 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is reduced to Pb.
2 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is reduced to Pb.
3 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is oxidised to Pb.
4 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is oxidised to \({\rm{Pb}}{{\rm{O}}_{\rm{2}}}\).
Explanation:
Lead storage battery is an example of Secondary cells. The following reaction takes place at anode during charging the battery, \({\rm{PbS}}{{\rm{O}}_{\rm{4}}} + {\rm{2e}} \to {\rm{P}}{{\rm{b}}_{\left( {\rm{s}} \right)}}\)
CHXII03:ELECTROCHEMISTRY
329926
The reaction which is taking place in nickel-cadmium battery can be represented by which of the following equation?
329921
The most common dry cell is the Leclanche cell. It consists of a carbon (graphite) rod as cathode which is surrounded by powdered ____ and carbon black.
1 MnO
2 \(\mathrm{Mn}_{2} \mathrm{O}_{5}\)
3 \(\mathrm{MnO}_{2}\)
4 \(\mathrm{Mn}_{3} \mathrm{O}_{4}\)
Explanation:
The cathode is surrounded by a paste of manganese dioxide \(\left(\mathrm{MnO}_{2}\right)\), ammonium chloride and zinc chloride.
CHXII03:ELECTROCHEMISTRY
329922
Assertion : A battery is used as a source of electrical energy. Reason : A battery may have one or more than one cell connected in series.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
A battery, functioning as a galvanic cell, converts chemical energy from redox reactions into electrical energy, creating an electromotive force (emf) that, when harnessed across terminals, supplies voltage to power diverse devices. So, option (2) is correct.
CHXII03:ELECTROCHEMISTRY
329923
When lead accumulator is charged, it is
1 An electrolytic cell
2 A galvanic cell
3 A Daniel cell
4 None of these
Explanation:
It behaves as electrolytic cell.
CHXII03:ELECTROCHEMISTRY
329925
While charging the lead storage battery
1 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is reduced to Pb.
2 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is reduced to Pb.
3 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is oxidised to Pb.
4 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is oxidised to \({\rm{Pb}}{{\rm{O}}_{\rm{2}}}\).
Explanation:
Lead storage battery is an example of Secondary cells. The following reaction takes place at anode during charging the battery, \({\rm{PbS}}{{\rm{O}}_{\rm{4}}} + {\rm{2e}} \to {\rm{P}}{{\rm{b}}_{\left( {\rm{s}} \right)}}\)
CHXII03:ELECTROCHEMISTRY
329926
The reaction which is taking place in nickel-cadmium battery can be represented by which of the following equation?
329921
The most common dry cell is the Leclanche cell. It consists of a carbon (graphite) rod as cathode which is surrounded by powdered ____ and carbon black.
1 MnO
2 \(\mathrm{Mn}_{2} \mathrm{O}_{5}\)
3 \(\mathrm{MnO}_{2}\)
4 \(\mathrm{Mn}_{3} \mathrm{O}_{4}\)
Explanation:
The cathode is surrounded by a paste of manganese dioxide \(\left(\mathrm{MnO}_{2}\right)\), ammonium chloride and zinc chloride.
CHXII03:ELECTROCHEMISTRY
329922
Assertion : A battery is used as a source of electrical energy. Reason : A battery may have one or more than one cell connected in series.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
A battery, functioning as a galvanic cell, converts chemical energy from redox reactions into electrical energy, creating an electromotive force (emf) that, when harnessed across terminals, supplies voltage to power diverse devices. So, option (2) is correct.
CHXII03:ELECTROCHEMISTRY
329923
When lead accumulator is charged, it is
1 An electrolytic cell
2 A galvanic cell
3 A Daniel cell
4 None of these
Explanation:
It behaves as electrolytic cell.
CHXII03:ELECTROCHEMISTRY
329925
While charging the lead storage battery
1 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is reduced to Pb.
2 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is reduced to Pb.
3 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) cathode is oxidised to Pb.
4 \({\rm{PbS}}{{\rm{O}}_{\rm{4}}}\) anode is oxidised to \({\rm{Pb}}{{\rm{O}}_{\rm{2}}}\).
Explanation:
Lead storage battery is an example of Secondary cells. The following reaction takes place at anode during charging the battery, \({\rm{PbS}}{{\rm{O}}_{\rm{4}}} + {\rm{2e}} \to {\rm{P}}{{\rm{b}}_{\left( {\rm{s}} \right)}}\)
CHXII03:ELECTROCHEMISTRY
329926
The reaction which is taking place in nickel-cadmium battery can be represented by which of the following equation?
