मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Mercury cell does not give steady potential. Reason: In the cell reaction, ions are not involved in solution.

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प्रश्न

Assertion: Mercury cell does not give steady potential.

Reason: In the cell reaction, ions are not involved in solution.

पर्याय

  • Both assertion and reason are true and the reason is the correct explanation of assertion.

  • Both assertion and reason are true and the reason is not the correct explanation of assertion.

  • Assertion is true but the reason is false.

  • Both assertion and reason are false.

  • Assertion is false but reason is true.

MCQ
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उत्तर

Assertion is false but reason is true.

Explanation:

Mercury cell gives a steady potential because in the cell reaction ions are not involved in the solution.

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पाठ 3: Electrochemistry - Exercises [पृष्ठ ४२]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 3 Electrochemistry
Exercises | Q V. 60. | पृष्ठ ४२

संबंधित प्रश्‍न

What happens if external potential applied becomes greater than E°cell of electrochemical cell?


Arrange the following metals in the order in which they displace each other from the solution of their salts.

Al, Cu, Fe, Mg and Zn.


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How many moles of electrons are required for reduction of 2 moles of Zn2+ to Zn?


A solution of CuSO4 is electrolysed using a current of 1.5 amperes for 10 minutes. What mass of Cu is deposited at cathode? [Atomic mass of Cu = 63.7]


At 25°C, the emf of the following electrochemical cell.

\[\ce{Ag_{(s)} | Ag^+ (0.01 M) | | Zn^{2+} {(0.1 M)} | Zn_{(s)}}\] will be:

(Given \[\ce{E^0_{cell}}\] = −1.562 V)


How many faradays of electricity are required for the following reaction to occur

\[\ce{MnO^-_4 -> Mn^2+}\]


In the electrochemical cell: Zn|ZnSO4 (0.01 M)||CuSO4 (1.0 M)|Cu, the emf of this Daniel cell is E1. When the concentration of ZnSO4 is changed to 1.0 M and that CuSO4 changed to 0.01 M, the emf changes to E2. From the above, which one is the relationship between E1 and E2?


Define anode


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Given: \[\ce{E^0_{{Fe^{2+}|Fe}}}\] = −0.44 V


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An electrochemical cell can behave like an electrolytic cell when ______.


Depict the galvanic cell in which the cell reaction is \[\ce{Cu + 2Ag^+ -> 2Ag + Cu^{2+}}\]


What is electrode potential?


A galvanic cell has electrical potential of 1.1V. If an opposing potential of 1.1V is applied to this cell, what will happen to the cell reaction and current flowing through the cell?


Match the terms given in Column I with the units given in Column II.

Column I Column II
(i) Λm (a) S cm-¹
(ii) ECell (b) m-¹
(iii) K (c) S cm2 mol-¹
(iv) G* (d) V

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Reason: `"E"_("cathode") < "E"_("anode")`


Which of the following statements about galvanic cell is incorrect


What is an electrochemical cell? What does it consist of?


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