Electrochemistry questions
1808 published questions with worked solutions.
- The number of molecules of chlorine that would be deposited from molten NaCl in one minute by current of 300 milliamperes is _____
- When a current of 3 A is passed through an aqueous solution of a palladium salt, the mass of Pd metal deposited in 1 hour is 2.98...
- The cost of electricity required to deposit 1 g of Mg is rs. 3.00. The cost to deposit 8 g of Al is _____
- A metal 'M' is known to form the fluoride MF_2 . When 10 A of electricity is passed through the molten salt for 330 s, 1.950 g of...
- The initial cell potential of Daniel cell is _____
- The cells reaction of the galvanic cell Cu_ (s) |Cu^ 2+ _ (aq) ||Hg^ 2+ _ (aq) |Hg_ (l) is _____
- The life span of a Daniel cell is increased by _____
- Silver – silver chloride electrode is a _____ electrode
- For the electrochemical cell Ag_ (s) |AgCl_ (s) |KCl_ (aq) ||AgNO_ 3(aq) |Ag_ (s) the overall cell reaction is _____
- In the representation of galvanic cells, a double vertical line between two solutions indicates _____
- In galvanic cell, the salt bridge is used to _____
- The reaction 12 H_ 2(g) + AgCl_ (s) H^+_ (aq) + Cl^-_ (aq) + Ag_ (s) occurs in the galvanic cell
- In the Daniel cell, if the concentrations of Zn^ +2 and Cu^ +2 ions are doubled, the e.m.f. of the cell _____
- The standard cell potential of Zn|Zn^ 2+ _ (aq) ||Cu^ 2+ _ (aq) |Cu cell is 1.10 V. The maximum work obtained by this cell will...
- For the electrochemical cell M|M^+||X^-|X , E^ ( M/M^+ ) = 0.44 V ; E^ ( X^-/X ) = -0.33 V Therefore _____
- If the Zn^ 2+ and Cu^ 2+ concentrations are 0.1 M and 10^ -9 M respectively at 25^ , the potential of the cell containing Zn/ Zn^...
- The standard oxidation potential of Zn and Ag at 20^ are Zn_ (s) Zn^ 2+ _ (aq) + 2e^-; E^ = 0.76 V Ag_ (s) Ag^+_ (aq) + e^-; E^ =...
- The hydrogen electrode is dipped in a solution of pH = 3 at 25^ . The potential of the cell would be (the value of 2.303 ,RT/F is...
- Which is the CORRECT Nernst equation for reaction taking place in the following cell? Mg_ (s) |Mg^ 2+ _ (aq) ||Cl^-_ (aq) |Cl_...
- The potential of the cell for the reaction M_ (s) + 2H^+(1M) H_ 2(g) , (1 atm) + M^ 2+ (0.1M) is 1.500 V. The standard reduction...
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