330151
An electric current is passed through an aqueous solution of the following compounds which one shall decompose?
1 Urea
2 Glucose
3 Silver nitrate
4 Propyl alcohol
Explanation:
Silver nitrate is an example of electrolyte which can easily undergo decomposition. Remaining compounds are non-electrolytes.
CHXII03:ELECTROCHEMISTRY
330152
In the electrolytic cell, flow of electrons is from
1 Cathode to anode in solution
2 Cathode to anode through external source
3 Cathode to anode through internal supply
4 Anode to cathode through external supply
Explanation:
In electrolytic cell, flow of electrons is from anode to cathode through external source.
CHXII03:ELECTROCHEMISTRY
330153
Which of the following statement is not correct about an inert electrode in a cell?
1 It does not participate in the cell reaction.
2 It provides surface either for oxidation or for reduction reaction.
3 It provides surface for conduction of electrons.
4 It provides surface for redox reaction.
Explanation:
Electrodes which are chemically inert are known as inert electrodes. It provides surface for conduction of electrons and also for either oxidation or reduction but not for redox reactions.
CHXII03:ELECTROCHEMISTRY
330154
Electrolytes when dissolved in water dissociate into ions because
1 They are unstable
2 The water dissolves it
3 The forces of repulsion increases
4 The forces of electrostatic attraction are broken down by water
Explanation:
Due to very high dielectric constant of water electrolytes dissociate into ions when dissolved in water. It mainly reduces the force of attractions between ions.
CHXII03:ELECTROCHEMISTRY
330155
Statement A : Impure copper is converted into pure copper by electrolysis. Statement B : Copper is dissolved at cathode and deposited at anode
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Cu gets discharged at cathode \({\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}} \to {\rm{Cu(s)}}\) Copper metal is deposited at cathode and at anode, copper is converted into \({\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{ion}}\) \({\rm{Cu(s)}} \to {\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}}\) i.e. Copper is dissolved from anode. It is the industrial process by which impure copper is converted into copper of high purity. So, the option (1) is correct.
330151
An electric current is passed through an aqueous solution of the following compounds which one shall decompose?
1 Urea
2 Glucose
3 Silver nitrate
4 Propyl alcohol
Explanation:
Silver nitrate is an example of electrolyte which can easily undergo decomposition. Remaining compounds are non-electrolytes.
CHXII03:ELECTROCHEMISTRY
330152
In the electrolytic cell, flow of electrons is from
1 Cathode to anode in solution
2 Cathode to anode through external source
3 Cathode to anode through internal supply
4 Anode to cathode through external supply
Explanation:
In electrolytic cell, flow of electrons is from anode to cathode through external source.
CHXII03:ELECTROCHEMISTRY
330153
Which of the following statement is not correct about an inert electrode in a cell?
1 It does not participate in the cell reaction.
2 It provides surface either for oxidation or for reduction reaction.
3 It provides surface for conduction of electrons.
4 It provides surface for redox reaction.
Explanation:
Electrodes which are chemically inert are known as inert electrodes. It provides surface for conduction of electrons and also for either oxidation or reduction but not for redox reactions.
CHXII03:ELECTROCHEMISTRY
330154
Electrolytes when dissolved in water dissociate into ions because
1 They are unstable
2 The water dissolves it
3 The forces of repulsion increases
4 The forces of electrostatic attraction are broken down by water
Explanation:
Due to very high dielectric constant of water electrolytes dissociate into ions when dissolved in water. It mainly reduces the force of attractions between ions.
CHXII03:ELECTROCHEMISTRY
330155
Statement A : Impure copper is converted into pure copper by electrolysis. Statement B : Copper is dissolved at cathode and deposited at anode
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Cu gets discharged at cathode \({\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}} \to {\rm{Cu(s)}}\) Copper metal is deposited at cathode and at anode, copper is converted into \({\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{ion}}\) \({\rm{Cu(s)}} \to {\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}}\) i.e. Copper is dissolved from anode. It is the industrial process by which impure copper is converted into copper of high purity. So, the option (1) is correct.
330151
An electric current is passed through an aqueous solution of the following compounds which one shall decompose?
1 Urea
2 Glucose
3 Silver nitrate
4 Propyl alcohol
Explanation:
Silver nitrate is an example of electrolyte which can easily undergo decomposition. Remaining compounds are non-electrolytes.
CHXII03:ELECTROCHEMISTRY
330152
In the electrolytic cell, flow of electrons is from
1 Cathode to anode in solution
2 Cathode to anode through external source
3 Cathode to anode through internal supply
4 Anode to cathode through external supply
Explanation:
In electrolytic cell, flow of electrons is from anode to cathode through external source.
CHXII03:ELECTROCHEMISTRY
330153
Which of the following statement is not correct about an inert electrode in a cell?
1 It does not participate in the cell reaction.
2 It provides surface either for oxidation or for reduction reaction.
3 It provides surface for conduction of electrons.
4 It provides surface for redox reaction.
Explanation:
Electrodes which are chemically inert are known as inert electrodes. It provides surface for conduction of electrons and also for either oxidation or reduction but not for redox reactions.
CHXII03:ELECTROCHEMISTRY
330154
Electrolytes when dissolved in water dissociate into ions because
1 They are unstable
2 The water dissolves it
3 The forces of repulsion increases
4 The forces of electrostatic attraction are broken down by water
Explanation:
Due to very high dielectric constant of water electrolytes dissociate into ions when dissolved in water. It mainly reduces the force of attractions between ions.
CHXII03:ELECTROCHEMISTRY
330155
Statement A : Impure copper is converted into pure copper by electrolysis. Statement B : Copper is dissolved at cathode and deposited at anode
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Cu gets discharged at cathode \({\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}} \to {\rm{Cu(s)}}\) Copper metal is deposited at cathode and at anode, copper is converted into \({\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{ion}}\) \({\rm{Cu(s)}} \to {\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}}\) i.e. Copper is dissolved from anode. It is the industrial process by which impure copper is converted into copper of high purity. So, the option (1) is correct.
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CHXII03:ELECTROCHEMISTRY
330151
An electric current is passed through an aqueous solution of the following compounds which one shall decompose?
1 Urea
2 Glucose
3 Silver nitrate
4 Propyl alcohol
Explanation:
Silver nitrate is an example of electrolyte which can easily undergo decomposition. Remaining compounds are non-electrolytes.
CHXII03:ELECTROCHEMISTRY
330152
In the electrolytic cell, flow of electrons is from
1 Cathode to anode in solution
2 Cathode to anode through external source
3 Cathode to anode through internal supply
4 Anode to cathode through external supply
Explanation:
In electrolytic cell, flow of electrons is from anode to cathode through external source.
CHXII03:ELECTROCHEMISTRY
330153
Which of the following statement is not correct about an inert electrode in a cell?
1 It does not participate in the cell reaction.
2 It provides surface either for oxidation or for reduction reaction.
3 It provides surface for conduction of electrons.
4 It provides surface for redox reaction.
Explanation:
Electrodes which are chemically inert are known as inert electrodes. It provides surface for conduction of electrons and also for either oxidation or reduction but not for redox reactions.
CHXII03:ELECTROCHEMISTRY
330154
Electrolytes when dissolved in water dissociate into ions because
1 They are unstable
2 The water dissolves it
3 The forces of repulsion increases
4 The forces of electrostatic attraction are broken down by water
Explanation:
Due to very high dielectric constant of water electrolytes dissociate into ions when dissolved in water. It mainly reduces the force of attractions between ions.
CHXII03:ELECTROCHEMISTRY
330155
Statement A : Impure copper is converted into pure copper by electrolysis. Statement B : Copper is dissolved at cathode and deposited at anode
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Cu gets discharged at cathode \({\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}} \to {\rm{Cu(s)}}\) Copper metal is deposited at cathode and at anode, copper is converted into \({\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{ion}}\) \({\rm{Cu(s)}} \to {\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}}\) i.e. Copper is dissolved from anode. It is the industrial process by which impure copper is converted into copper of high purity. So, the option (1) is correct.
330151
An electric current is passed through an aqueous solution of the following compounds which one shall decompose?
1 Urea
2 Glucose
3 Silver nitrate
4 Propyl alcohol
Explanation:
Silver nitrate is an example of electrolyte which can easily undergo decomposition. Remaining compounds are non-electrolytes.
CHXII03:ELECTROCHEMISTRY
330152
In the electrolytic cell, flow of electrons is from
1 Cathode to anode in solution
2 Cathode to anode through external source
3 Cathode to anode through internal supply
4 Anode to cathode through external supply
Explanation:
In electrolytic cell, flow of electrons is from anode to cathode through external source.
CHXII03:ELECTROCHEMISTRY
330153
Which of the following statement is not correct about an inert electrode in a cell?
1 It does not participate in the cell reaction.
2 It provides surface either for oxidation or for reduction reaction.
3 It provides surface for conduction of electrons.
4 It provides surface for redox reaction.
Explanation:
Electrodes which are chemically inert are known as inert electrodes. It provides surface for conduction of electrons and also for either oxidation or reduction but not for redox reactions.
CHXII03:ELECTROCHEMISTRY
330154
Electrolytes when dissolved in water dissociate into ions because
1 They are unstable
2 The water dissolves it
3 The forces of repulsion increases
4 The forces of electrostatic attraction are broken down by water
Explanation:
Due to very high dielectric constant of water electrolytes dissociate into ions when dissolved in water. It mainly reduces the force of attractions between ions.
CHXII03:ELECTROCHEMISTRY
330155
Statement A : Impure copper is converted into pure copper by electrolysis. Statement B : Copper is dissolved at cathode and deposited at anode
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Cu gets discharged at cathode \({\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}} \to {\rm{Cu(s)}}\) Copper metal is deposited at cathode and at anode, copper is converted into \({\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}{\mkern 1mu} {\mkern 1mu} {\rm{ion}}\) \({\rm{Cu(s)}} \to {\rm{C}}{{\rm{u}}^{{\rm{ + 2}}}}{\rm{(aq) + 2}}{{\rm{e}}^{\rm{ - }}}\) i.e. Copper is dissolved from anode. It is the industrial process by which impure copper is converted into copper of high purity. So, the option (1) is correct.