NEET Test Series from KOTA - 10 Papers In MS WORD
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ELECTROCHEMISTRY
20020
A cell from the following which converts electrical energy into chemical energy
1 None of these
2 Dry cell
3 Electrochemical cell
4 Electrolytic cell
Explanation:
(c)In the electrolytic cell electrical energy change into chemical energy.
ELECTROCHEMISTRY
20021
In the cell \(Zn\,\, \vert\,\,Z{n^{2 + }}\,\, \vert \vert\,\,C{u^{2 + }}\,\, \vert\,\,Cu,\) the negative electrode is
1 \(Cu\)
2 \(C{u^{2 + }}\)
3 \(Zn\)
4 \(Z{n^{2 + }}\)
Explanation:
(c)In the cell \(Zn \vertZ{n^{2 + }} \vert \vertC{u^{2 + }} \vertCu\)the negative electrode (anode) is \(Zn.\) In electrochemical cell representation anode is always written on left side while cathode on right side.
ELECTROCHEMISTRY
20022
Which of the following statements is correct ? Galvanic cell converts
1 Chemical energy into electrical energy
2 Electrical energy into chemical energy
3 Metal from its elemental state to the combined state
4 Electrolyte into individual ions
Explanation:
(a)Galvanic cell converts the chemical energy into electrical energy.
ELECTROCHEMISTRY
20023
Hydrogen-oxygen fuel cells are used in space-craft to supply
1 Power for heat and light
2 Power for pressure
3 Oxygen
4 Water
Explanation:
(b)Fuel-cells are used to provide power and drinking water to astronauts in space programme.
20020
A cell from the following which converts electrical energy into chemical energy
1 None of these
2 Dry cell
3 Electrochemical cell
4 Electrolytic cell
Explanation:
(c)In the electrolytic cell electrical energy change into chemical energy.
ELECTROCHEMISTRY
20021
In the cell \(Zn\,\, \vert\,\,Z{n^{2 + }}\,\, \vert \vert\,\,C{u^{2 + }}\,\, \vert\,\,Cu,\) the negative electrode is
1 \(Cu\)
2 \(C{u^{2 + }}\)
3 \(Zn\)
4 \(Z{n^{2 + }}\)
Explanation:
(c)In the cell \(Zn \vertZ{n^{2 + }} \vert \vertC{u^{2 + }} \vertCu\)the negative electrode (anode) is \(Zn.\) In electrochemical cell representation anode is always written on left side while cathode on right side.
ELECTROCHEMISTRY
20022
Which of the following statements is correct ? Galvanic cell converts
1 Chemical energy into electrical energy
2 Electrical energy into chemical energy
3 Metal from its elemental state to the combined state
4 Electrolyte into individual ions
Explanation:
(a)Galvanic cell converts the chemical energy into electrical energy.
ELECTROCHEMISTRY
20023
Hydrogen-oxygen fuel cells are used in space-craft to supply
1 Power for heat and light
2 Power for pressure
3 Oxygen
4 Water
Explanation:
(b)Fuel-cells are used to provide power and drinking water to astronauts in space programme.
20020
A cell from the following which converts electrical energy into chemical energy
1 None of these
2 Dry cell
3 Electrochemical cell
4 Electrolytic cell
Explanation:
(c)In the electrolytic cell electrical energy change into chemical energy.
ELECTROCHEMISTRY
20021
In the cell \(Zn\,\, \vert\,\,Z{n^{2 + }}\,\, \vert \vert\,\,C{u^{2 + }}\,\, \vert\,\,Cu,\) the negative electrode is
1 \(Cu\)
2 \(C{u^{2 + }}\)
3 \(Zn\)
4 \(Z{n^{2 + }}\)
Explanation:
(c)In the cell \(Zn \vertZ{n^{2 + }} \vert \vertC{u^{2 + }} \vertCu\)the negative electrode (anode) is \(Zn.\) In electrochemical cell representation anode is always written on left side while cathode on right side.
ELECTROCHEMISTRY
20022
Which of the following statements is correct ? Galvanic cell converts
1 Chemical energy into electrical energy
2 Electrical energy into chemical energy
3 Metal from its elemental state to the combined state
4 Electrolyte into individual ions
Explanation:
(a)Galvanic cell converts the chemical energy into electrical energy.
ELECTROCHEMISTRY
20023
Hydrogen-oxygen fuel cells are used in space-craft to supply
1 Power for heat and light
2 Power for pressure
3 Oxygen
4 Water
Explanation:
(b)Fuel-cells are used to provide power and drinking water to astronauts in space programme.
20020
A cell from the following which converts electrical energy into chemical energy
1 None of these
2 Dry cell
3 Electrochemical cell
4 Electrolytic cell
Explanation:
(c)In the electrolytic cell electrical energy change into chemical energy.
ELECTROCHEMISTRY
20021
In the cell \(Zn\,\, \vert\,\,Z{n^{2 + }}\,\, \vert \vert\,\,C{u^{2 + }}\,\, \vert\,\,Cu,\) the negative electrode is
1 \(Cu\)
2 \(C{u^{2 + }}\)
3 \(Zn\)
4 \(Z{n^{2 + }}\)
Explanation:
(c)In the cell \(Zn \vertZ{n^{2 + }} \vert \vertC{u^{2 + }} \vertCu\)the negative electrode (anode) is \(Zn.\) In electrochemical cell representation anode is always written on left side while cathode on right side.
ELECTROCHEMISTRY
20022
Which of the following statements is correct ? Galvanic cell converts
1 Chemical energy into electrical energy
2 Electrical energy into chemical energy
3 Metal from its elemental state to the combined state
4 Electrolyte into individual ions
Explanation:
(a)Galvanic cell converts the chemical energy into electrical energy.
ELECTROCHEMISTRY
20023
Hydrogen-oxygen fuel cells are used in space-craft to supply
1 Power for heat and light
2 Power for pressure
3 Oxygen
4 Water
Explanation:
(b)Fuel-cells are used to provide power and drinking water to astronauts in space programme.
