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

Match the terms given in Column I with the items given in Column II. Column I Column II (i) Λm (a) intensive property (ii) ECell (b) depends on number of ions/volume

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प्रश्न

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

Column I Column II
(i) Λm (a) intensive property
(ii) ECell (b) depends on number of ions/volume
(iii) K (c) extensive property
(iv) ∆rGCell (d) increases with dilution
जोड्या लावा/जोड्या जुळवा
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उत्तर

Column I Column II
(i) Λm (d) increases with dilution
(ii) ECell (a) intensive property
(iii) K (b) depends on number of ions/volume
(iv) ∆rGCell (c) extensive property
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पाठ 3: Electrochemistry - Exercises [पृष्ठ ४०]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 3 Electrochemistry
Exercises | Q IV. 51. | पृष्ठ ४०

संबंधित प्रश्‍न

E°cell for the given redox reaction is 2.71 V
Mg(s) + Cu2+ (0.01 M) → Mg2+ (0.001 M) + Cu(s)

Calculate Ecell for the reaction. Write the direction of flow of current when an external opposite potential applied is
(i) less than 2.71 V and
(ii) greater than 2.71 V


For the electrochemical cell:

\[\ce{M | M+ || X- | X}\]; 

\[\ce{E^{\circ}_{{M^{+}/{M}}}}\] = 0.44 V,

\[\ce{E^{\circ}_{X/X^-}}\] = 0.33 V

Which of the following is TRUE for this data?


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What is the SI unit tor electrochemical equivalent?


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Assertion: pure iron when heated in dry air is converted with a layer of rust.

Reason: Rust has the compositionFe3O4.


Define anode


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For the cell \[\ce{Mg_{(s)}|Mg^{2+}_{( aq)}||Ag^+_{( aq)}|Ag_{(s)}}\], calculate the equilibrium constant at 25°C and maximum work that can be obtained during operation of cell.
Given: \[\ce{E^0_{{Mg^{2+}|Mg}}}\] = −2.37 V and \[\ce{E^0_{{Ag^{+}|Ag}}}\] = 0.80 V


For the given cell, \[\ce{Mg | Mg^{2+} || Cu^{2+} | Cu}\]

(i) \[\ce{Mg}\] is cathode

(ii) \[\ce{Cu}\] is cathode

(iii) The cell reaction is \[\ce{Mg^+ Cu^{2+} -> Mg^{2+} + Cu}\]

(iv) \[\ce{Cu}\] is the oxidising agent


How will the pH of brine (aq. \[\ce{NaCl}\] solution) be affected when it is electrolysed?


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

Match the items of Column I and Column II.

Column I Column II
(i) K (a) I × t
(ii) Λm (b) `Λ_m/Λ_m^0`
(iii) α (c) `K/c`
(iv) Q (d) `G^∗/R`

On which electrode the oxidation reaction takes place?


Which of the following is incorrect?


The number of moles of electrons passed when the current of 2 A is passed through a solution of electrolyte for 20 minutes is ______.


The cell constant of a conductivity cell is 0.146 cm-1. What is the conductivity of 0.01 M solution of an electrolyte at 298 K, if the resistance of the cell is 1000 ohm?


Explain why the anode is of negative polarity in a galvanic cell.


State the term for the following:

Two metal plates or wires through which the current enters and leaves the electrolytic cell.


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