Redox Reactions and Electrode Processes
CHXI08:REDOX REACTIONS

315420 \(\mathrm{\mathrm{KCl}}\) is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \(\mathrm{\mathrm{K}^{+}}\) and \(\mathrm{\mathrm{Cl}^{-}}\) ions are nearly same or both have same ionic mobility
CHXI08:REDOX REACTIONS

315421 Assertion :
Salts like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) i.e., inert electrolytes are used in salt bridge.
Reason :
An inert electrolyte can easily be filled in the U-tube.

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.
CHXI08:REDOX REACTIONS

315422 In a galvanic cell energy changes occur like:

1 Chemical energy \(\mathrm{\rightarrow}\) Electrical energy
2 Electrical energy \(\mathrm{\rightarrow}\) Chemical energy
3 Chemical energy \(\mathrm{\rightarrow}\) Internal energy
4 Internal energy \(\mathrm{\rightarrow}\) Electrical energy
CHXI08:REDOX REACTIONS

315423 Assertion :
In a galvanic cell, the salt bridge is used to complete the circuit.
Reason :
The completion of circuit is important for the flow of electric current.

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.
CHXI08:REDOX REACTIONS

315424 In the cell represented by \(\mathrm{P b_{(S)}\left|P b_{(1 M)}^{2+}\right|\left|A g_{(1 M)}^{+}\right| A g_{(S)}}\), the reducing agent is

1 \(\mathrm{\mathrm{Pb}}\)
2 \(\mathrm{\mathrm{Pb}^{2+}}\)
3 \(\mathrm{\mathrm{Ag}}\)
4 \(\mathrm{\mathrm{Ag}^{+}}\)
CHXI08:REDOX REACTIONS

315420 \(\mathrm{\mathrm{KCl}}\) is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \(\mathrm{\mathrm{K}^{+}}\) and \(\mathrm{\mathrm{Cl}^{-}}\) ions are nearly same or both have same ionic mobility
CHXI08:REDOX REACTIONS

315421 Assertion :
Salts like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) i.e., inert electrolytes are used in salt bridge.
Reason :
An inert electrolyte can easily be filled in the U-tube.

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.
CHXI08:REDOX REACTIONS

315422 In a galvanic cell energy changes occur like:

1 Chemical energy \(\mathrm{\rightarrow}\) Electrical energy
2 Electrical energy \(\mathrm{\rightarrow}\) Chemical energy
3 Chemical energy \(\mathrm{\rightarrow}\) Internal energy
4 Internal energy \(\mathrm{\rightarrow}\) Electrical energy
CHXI08:REDOX REACTIONS

315423 Assertion :
In a galvanic cell, the salt bridge is used to complete the circuit.
Reason :
The completion of circuit is important for the flow of electric current.

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.
CHXI08:REDOX REACTIONS

315424 In the cell represented by \(\mathrm{P b_{(S)}\left|P b_{(1 M)}^{2+}\right|\left|A g_{(1 M)}^{+}\right| A g_{(S)}}\), the reducing agent is

1 \(\mathrm{\mathrm{Pb}}\)
2 \(\mathrm{\mathrm{Pb}^{2+}}\)
3 \(\mathrm{\mathrm{Ag}}\)
4 \(\mathrm{\mathrm{Ag}^{+}}\)
CHXI08:REDOX REACTIONS

315420 \(\mathrm{\mathrm{KCl}}\) is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \(\mathrm{\mathrm{K}^{+}}\) and \(\mathrm{\mathrm{Cl}^{-}}\) ions are nearly same or both have same ionic mobility
CHXI08:REDOX REACTIONS

315421 Assertion :
Salts like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) i.e., inert electrolytes are used in salt bridge.
Reason :
An inert electrolyte can easily be filled in the U-tube.

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.
CHXI08:REDOX REACTIONS

315422 In a galvanic cell energy changes occur like:

1 Chemical energy \(\mathrm{\rightarrow}\) Electrical energy
2 Electrical energy \(\mathrm{\rightarrow}\) Chemical energy
3 Chemical energy \(\mathrm{\rightarrow}\) Internal energy
4 Internal energy \(\mathrm{\rightarrow}\) Electrical energy
CHXI08:REDOX REACTIONS

315423 Assertion :
In a galvanic cell, the salt bridge is used to complete the circuit.
Reason :
The completion of circuit is important for the flow of electric current.

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.
CHXI08:REDOX REACTIONS

315424 In the cell represented by \(\mathrm{P b_{(S)}\left|P b_{(1 M)}^{2+}\right|\left|A g_{(1 M)}^{+}\right| A g_{(S)}}\), the reducing agent is

1 \(\mathrm{\mathrm{Pb}}\)
2 \(\mathrm{\mathrm{Pb}^{2+}}\)
3 \(\mathrm{\mathrm{Ag}}\)
4 \(\mathrm{\mathrm{Ag}^{+}}\)
CHXI08:REDOX REACTIONS

315420 \(\mathrm{\mathrm{KCl}}\) is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \(\mathrm{\mathrm{K}^{+}}\) and \(\mathrm{\mathrm{Cl}^{-}}\) ions are nearly same or both have same ionic mobility
CHXI08:REDOX REACTIONS

315421 Assertion :
Salts like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) i.e., inert electrolytes are used in salt bridge.
Reason :
An inert electrolyte can easily be filled in the U-tube.

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.
CHXI08:REDOX REACTIONS

315422 In a galvanic cell energy changes occur like:

1 Chemical energy \(\mathrm{\rightarrow}\) Electrical energy
2 Electrical energy \(\mathrm{\rightarrow}\) Chemical energy
3 Chemical energy \(\mathrm{\rightarrow}\) Internal energy
4 Internal energy \(\mathrm{\rightarrow}\) Electrical energy
CHXI08:REDOX REACTIONS

315423 Assertion :
In a galvanic cell, the salt bridge is used to complete the circuit.
Reason :
The completion of circuit is important for the flow of electric current.

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.
CHXI08:REDOX REACTIONS

315424 In the cell represented by \(\mathrm{P b_{(S)}\left|P b_{(1 M)}^{2+}\right|\left|A g_{(1 M)}^{+}\right| A g_{(S)}}\), the reducing agent is

1 \(\mathrm{\mathrm{Pb}}\)
2 \(\mathrm{\mathrm{Pb}^{2+}}\)
3 \(\mathrm{\mathrm{Ag}}\)
4 \(\mathrm{\mathrm{Ag}^{+}}\)
CHXI08:REDOX REACTIONS

315420 \(\mathrm{\mathrm{KCl}}\) is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \(\mathrm{\mathrm{K}^{+}}\) and \(\mathrm{\mathrm{Cl}^{-}}\) ions are nearly same or both have same ionic mobility
CHXI08:REDOX REACTIONS

315421 Assertion :
Salts like \(\mathrm{KCl}, \mathrm{KNO}_{3}\) i.e., inert electrolytes are used in salt bridge.
Reason :
An inert electrolyte can easily be filled in the U-tube.

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.
CHXI08:REDOX REACTIONS

315422 In a galvanic cell energy changes occur like:

1 Chemical energy \(\mathrm{\rightarrow}\) Electrical energy
2 Electrical energy \(\mathrm{\rightarrow}\) Chemical energy
3 Chemical energy \(\mathrm{\rightarrow}\) Internal energy
4 Internal energy \(\mathrm{\rightarrow}\) Electrical energy
CHXI08:REDOX REACTIONS

315423 Assertion :
In a galvanic cell, the salt bridge is used to complete the circuit.
Reason :
The completion of circuit is important for the flow of electric current.

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.
CHXI08:REDOX REACTIONS

315424 In the cell represented by \(\mathrm{P b_{(S)}\left|P b_{(1 M)}^{2+}\right|\left|A g_{(1 M)}^{+}\right| A g_{(S)}}\), the reducing agent is

1 \(\mathrm{\mathrm{Pb}}\)
2 \(\mathrm{\mathrm{Pb}^{2+}}\)
3 \(\mathrm{\mathrm{Ag}}\)
4 \(\mathrm{\mathrm{Ag}^{+}}\)