Electrochemical Cells or Galvanic Cells
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CHXII03:ELECTROCHEMISTRY

330039 Which among the following statements is true for Galvanic cell?

1 The anode is negative and cathode is positive
2 Electrical energy is converted into chemical energy.
3 The anode is positive and cathode is negative
4 Oxidation takes place at positive electrode and reduction takes place at negative electrode.
MHTCET - 2021
CHXII03:ELECTROCHEMISTRY

330040 Assertion :
\(\mathrm{KCl}, \mathrm{NaCl}\) and \(\mathrm{NH}_{4} \mathrm{Cl}\) cannot be used in the salt bridge of a cell containing silver.
Reason :
A salt bridge contains concentrated solution of an inert electrolyte like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) \(\mathrm{K}_{2} \mathrm{SO}_{4}\) or solidified solution of such an electrolyte in agar-agar and gelatine.

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.
CHXII03:ELECTROCHEMISTRY

330041 Which one is not called as anode reaction from the following?

1 \(C{l^ - } \to \frac{1}{2}C{l_2} + {e^ - }\)
2 \(Cu \to C{u^{ + + }} + 2{e^ - }\)
3 \(H{g^ + } \to H{g^{ + + }} + {e^ - }\)
4 \(Z{n^{2 + }} \to 2{e^ - } + Zn\)
CHXII03:ELECTROCHEMISTRY

330042 If a salt bridge is removed between the two half cells, the voltage

1 Drops to zero
2 Does not change
3 Increases gradually
4 Increases rapidly
CHXII03:ELECTROCHEMISTRY

330043 The standard emf of \(\mathrm{Zn}-\mathrm{Cu}\) voltaic cell is

1 2.1 V
2 2.8 V
3 1.2 V
4 1.1 V
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CHXII03:ELECTROCHEMISTRY

330039 Which among the following statements is true for Galvanic cell?

1 The anode is negative and cathode is positive
2 Electrical energy is converted into chemical energy.
3 The anode is positive and cathode is negative
4 Oxidation takes place at positive electrode and reduction takes place at negative electrode.
MHTCET - 2021
CHXII03:ELECTROCHEMISTRY

330040 Assertion :
\(\mathrm{KCl}, \mathrm{NaCl}\) and \(\mathrm{NH}_{4} \mathrm{Cl}\) cannot be used in the salt bridge of a cell containing silver.
Reason :
A salt bridge contains concentrated solution of an inert electrolyte like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) \(\mathrm{K}_{2} \mathrm{SO}_{4}\) or solidified solution of such an electrolyte in agar-agar and gelatine.

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.
CHXII03:ELECTROCHEMISTRY

330041 Which one is not called as anode reaction from the following?

1 \(C{l^ - } \to \frac{1}{2}C{l_2} + {e^ - }\)
2 \(Cu \to C{u^{ + + }} + 2{e^ - }\)
3 \(H{g^ + } \to H{g^{ + + }} + {e^ - }\)
4 \(Z{n^{2 + }} \to 2{e^ - } + Zn\)
CHXII03:ELECTROCHEMISTRY

330042 If a salt bridge is removed between the two half cells, the voltage

1 Drops to zero
2 Does not change
3 Increases gradually
4 Increases rapidly
CHXII03:ELECTROCHEMISTRY

330043 The standard emf of \(\mathrm{Zn}-\mathrm{Cu}\) voltaic cell is

1 2.1 V
2 2.8 V
3 1.2 V
4 1.1 V
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CHXII03:ELECTROCHEMISTRY

330039 Which among the following statements is true for Galvanic cell?

1 The anode is negative and cathode is positive
2 Electrical energy is converted into chemical energy.
3 The anode is positive and cathode is negative
4 Oxidation takes place at positive electrode and reduction takes place at negative electrode.
MHTCET - 2021
CHXII03:ELECTROCHEMISTRY

330040 Assertion :
\(\mathrm{KCl}, \mathrm{NaCl}\) and \(\mathrm{NH}_{4} \mathrm{Cl}\) cannot be used in the salt bridge of a cell containing silver.
Reason :
A salt bridge contains concentrated solution of an inert electrolyte like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) \(\mathrm{K}_{2} \mathrm{SO}_{4}\) or solidified solution of such an electrolyte in agar-agar and gelatine.

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.
CHXII03:ELECTROCHEMISTRY

330041 Which one is not called as anode reaction from the following?

1 \(C{l^ - } \to \frac{1}{2}C{l_2} + {e^ - }\)
2 \(Cu \to C{u^{ + + }} + 2{e^ - }\)
3 \(H{g^ + } \to H{g^{ + + }} + {e^ - }\)
4 \(Z{n^{2 + }} \to 2{e^ - } + Zn\)
CHXII03:ELECTROCHEMISTRY

330042 If a salt bridge is removed between the two half cells, the voltage

1 Drops to zero
2 Does not change
3 Increases gradually
4 Increases rapidly
CHXII03:ELECTROCHEMISTRY

330043 The standard emf of \(\mathrm{Zn}-\mathrm{Cu}\) voltaic cell is

1 2.1 V
2 2.8 V
3 1.2 V
4 1.1 V
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CHXII03:ELECTROCHEMISTRY

330039 Which among the following statements is true for Galvanic cell?

1 The anode is negative and cathode is positive
2 Electrical energy is converted into chemical energy.
3 The anode is positive and cathode is negative
4 Oxidation takes place at positive electrode and reduction takes place at negative electrode.
MHTCET - 2021
CHXII03:ELECTROCHEMISTRY

330040 Assertion :
\(\mathrm{KCl}, \mathrm{NaCl}\) and \(\mathrm{NH}_{4} \mathrm{Cl}\) cannot be used in the salt bridge of a cell containing silver.
Reason :
A salt bridge contains concentrated solution of an inert electrolyte like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) \(\mathrm{K}_{2} \mathrm{SO}_{4}\) or solidified solution of such an electrolyte in agar-agar and gelatine.

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.
CHXII03:ELECTROCHEMISTRY

330041 Which one is not called as anode reaction from the following?

1 \(C{l^ - } \to \frac{1}{2}C{l_2} + {e^ - }\)
2 \(Cu \to C{u^{ + + }} + 2{e^ - }\)
3 \(H{g^ + } \to H{g^{ + + }} + {e^ - }\)
4 \(Z{n^{2 + }} \to 2{e^ - } + Zn\)
CHXII03:ELECTROCHEMISTRY

330042 If a salt bridge is removed between the two half cells, the voltage

1 Drops to zero
2 Does not change
3 Increases gradually
4 Increases rapidly
CHXII03:ELECTROCHEMISTRY

330043 The standard emf of \(\mathrm{Zn}-\mathrm{Cu}\) voltaic cell is

1 2.1 V
2 2.8 V
3 1.2 V
4 1.1 V
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CHXII03:ELECTROCHEMISTRY

330039 Which among the following statements is true for Galvanic cell?

1 The anode is negative and cathode is positive
2 Electrical energy is converted into chemical energy.
3 The anode is positive and cathode is negative
4 Oxidation takes place at positive electrode and reduction takes place at negative electrode.
MHTCET - 2021
CHXII03:ELECTROCHEMISTRY

330040 Assertion :
\(\mathrm{KCl}, \mathrm{NaCl}\) and \(\mathrm{NH}_{4} \mathrm{Cl}\) cannot be used in the salt bridge of a cell containing silver.
Reason :
A salt bridge contains concentrated solution of an inert electrolyte like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) \(\mathrm{K}_{2} \mathrm{SO}_{4}\) or solidified solution of such an electrolyte in agar-agar and gelatine.

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.
CHXII03:ELECTROCHEMISTRY

330041 Which one is not called as anode reaction from the following?

1 \(C{l^ - } \to \frac{1}{2}C{l_2} + {e^ - }\)
2 \(Cu \to C{u^{ + + }} + 2{e^ - }\)
3 \(H{g^ + } \to H{g^{ + + }} + {e^ - }\)
4 \(Z{n^{2 + }} \to 2{e^ - } + Zn\)
CHXII03:ELECTROCHEMISTRY

330042 If a salt bridge is removed between the two half cells, the voltage

1 Drops to zero
2 Does not change
3 Increases gradually
4 Increases rapidly
CHXII03:ELECTROCHEMISTRY

330043 The standard emf of \(\mathrm{Zn}-\mathrm{Cu}\) voltaic cell is

1 2.1 V
2 2.8 V
3 1.2 V
4 1.1 V