Batteries
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CHXII03:ELECTROCHEMISTRY

329927 When lead storage battery is charged

1 lead dioxide dissolves
2 sulphuric acid is regenerated
3 the lead electrode becomes coated with lead sulphate
4 the amount of sulphuric acid decreases
CHXII03:ELECTROCHEMISTRY

329928 Lithium is generally used as an electrode in high energy density batteries. This is because

1 Lithium is the lightest element
2 Lithium has quite high negative reduction potential
3 Lithium is quite reactive
4 Lithium does not corrode easily
CHXII03:ELECTROCHEMISTRY

329929 Some of the batteries are rechargeable:
I. Fuel cell
II. Dry cell,
III. Lead-storage
IV. Nickel-Cadmium,
V. Lithium
Select the batteries which can be recharged

1 II, IV and V
2 III, IV and V
3 I, II and III
4 None of above
CHXII03:ELECTROCHEMISTRY

329931 During the discharge of a lead storage battery, the density of \({\mathrm{40 \%\, \mathrm{H}_{2} \mathrm{SO}_{4}}}\) by weight fell from 1.225 to 0.98 (which is \({\mathrm{20 \%}}\) by weight). What is the change in molarities of \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) ?

1 1
2 2
3 3
4 4
CHXII03:ELECTROCHEMISTRY

329927 When lead storage battery is charged

1 lead dioxide dissolves
2 sulphuric acid is regenerated
3 the lead electrode becomes coated with lead sulphate
4 the amount of sulphuric acid decreases
CHXII03:ELECTROCHEMISTRY

329928 Lithium is generally used as an electrode in high energy density batteries. This is because

1 Lithium is the lightest element
2 Lithium has quite high negative reduction potential
3 Lithium is quite reactive
4 Lithium does not corrode easily
CHXII03:ELECTROCHEMISTRY

329929 Some of the batteries are rechargeable:
I. Fuel cell
II. Dry cell,
III. Lead-storage
IV. Nickel-Cadmium,
V. Lithium
Select the batteries which can be recharged

1 II, IV and V
2 III, IV and V
3 I, II and III
4 None of above
CHXII03:ELECTROCHEMISTRY

329931 During the discharge of a lead storage battery, the density of \({\mathrm{40 \%\, \mathrm{H}_{2} \mathrm{SO}_{4}}}\) by weight fell from 1.225 to 0.98 (which is \({\mathrm{20 \%}}\) by weight). What is the change in molarities of \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) ?

1 1
2 2
3 3
4 4
CHXII03:ELECTROCHEMISTRY

329927 When lead storage battery is charged

1 lead dioxide dissolves
2 sulphuric acid is regenerated
3 the lead electrode becomes coated with lead sulphate
4 the amount of sulphuric acid decreases
CHXII03:ELECTROCHEMISTRY

329928 Lithium is generally used as an electrode in high energy density batteries. This is because

1 Lithium is the lightest element
2 Lithium has quite high negative reduction potential
3 Lithium is quite reactive
4 Lithium does not corrode easily
CHXII03:ELECTROCHEMISTRY

329929 Some of the batteries are rechargeable:
I. Fuel cell
II. Dry cell,
III. Lead-storage
IV. Nickel-Cadmium,
V. Lithium
Select the batteries which can be recharged

1 II, IV and V
2 III, IV and V
3 I, II and III
4 None of above
CHXII03:ELECTROCHEMISTRY

329931 During the discharge of a lead storage battery, the density of \({\mathrm{40 \%\, \mathrm{H}_{2} \mathrm{SO}_{4}}}\) by weight fell from 1.225 to 0.98 (which is \({\mathrm{20 \%}}\) by weight). What is the change in molarities of \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) ?

1 1
2 2
3 3
4 4
CHXII03:ELECTROCHEMISTRY

329927 When lead storage battery is charged

1 lead dioxide dissolves
2 sulphuric acid is regenerated
3 the lead electrode becomes coated with lead sulphate
4 the amount of sulphuric acid decreases
CHXII03:ELECTROCHEMISTRY

329928 Lithium is generally used as an electrode in high energy density batteries. This is because

1 Lithium is the lightest element
2 Lithium has quite high negative reduction potential
3 Lithium is quite reactive
4 Lithium does not corrode easily
CHXII03:ELECTROCHEMISTRY

329929 Some of the batteries are rechargeable:
I. Fuel cell
II. Dry cell,
III. Lead-storage
IV. Nickel-Cadmium,
V. Lithium
Select the batteries which can be recharged

1 II, IV and V
2 III, IV and V
3 I, II and III
4 None of above
CHXII03:ELECTROCHEMISTRY

329931 During the discharge of a lead storage battery, the density of \({\mathrm{40 \%\, \mathrm{H}_{2} \mathrm{SO}_{4}}}\) by weight fell from 1.225 to 0.98 (which is \({\mathrm{20 \%}}\) by weight). What is the change in molarities of \({\mathrm{\mathrm{H}_{2} \mathrm{SO}_{4}}}\) ?

1 1
2 2
3 3
4 4