- 1(current)
Q. No.What will happen if no salt bridge is used in the electrochemical cell?
1. The inner circuit is not completed
2. Current stops flowing
3. The outer circuit is not completed
4. Both (1) & (2)
Subtopic: Electrolytic & Electrochemical Cell |
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Level 1: 80%+
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Consider the given two statements:
| Statement I: |
A Daniel cell consists of zinc and copper electrodes immersed in solutions of their respective salts. |
| Statement II: | Mercury cell consists of zinc–mercury amalgam as the anode and a paste of HgO & carbon as the cathode. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Electrolytic & Electrochemical Cell |
84%
Level 1: 80%+
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Match the two lists and choose the correct option:
1. (i)-(a); (ii)-(d); (iii)-(c), (iv)-(b)
2. (i)-(b); (ii)-(a); (iii)-(c), (iv)-(d)
3. (i)-(d); (ii)-(a); (iii)-(c), (iv)-(b)
4. (i)-(a); (ii)-(b); (iii)-(c), (iv)-(d)
| List-I | List-II | ||
| (i) | Ni-Cd cell | (a) | Rechargeable |
| (ii) | Fuel cell | (b) | Anode \(\left(\mathrm{Zn} \rightarrow \mathrm{Zn}^{2+}+2 \mathrm{e}^{-}\right)\) |
| (iii) | Mercury cell | (c) | Used in hearing aid |
| (iv) | Leclanché cell | (d) | Converts combustion energy into electrical energy |
1. (i)-(a); (ii)-(d); (iii)-(c), (iv)-(b)
2. (i)-(b); (ii)-(a); (iii)-(c), (iv)-(d)
3. (i)-(d); (ii)-(a); (iii)-(c), (iv)-(b)
4. (i)-(a); (ii)-(b); (iii)-(c), (iv)-(d)
Subtopic: Electrolytic & Electrochemical Cell |
83%
Level 1: 80%+
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The correct statement about the electrochemical cell is:
| 1. | Cell potential is an extensive property |
| 2. | Cell potential is an intensive property |
| 3. | The Gibbs free energy of an electrochemical cell is an intensive property |
| 4. | Gibbs free energy cannot be defined for an electrochemical cell |
Subtopic: Electrolytic & Electrochemical Cell |
78%
Level 2: 60%+
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Consider the given two statements:
| Assertion(A): | Zinc displaces copper from copper sulphate solution. |
| Reason(R): | The EºZn2+/Zn is -0.76 volts and that of EºCu2+/Cu is +0.34 volts. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are True and (R) is not the correct explanation of (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Electrolytic & Electrochemical Cell |
83%
Level 1: 80%+
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A device that converts energy of the combustion of fuels like hydrogen and methane, directly
into electrical energy is known as:
1. Fuel cell
2. Electrolytic cell
3. Dynamo
4. Ni-Cd cell
Subtopic: Electrolytic & Electrochemical Cell | Batteries & Salt Bridge |
84%
Level 1: 80%+
NEET - 2015
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- 1(current)
Q. No.
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