Electrochemistry questions
1808 published questions with worked solutions.
- An electrochemical cell, consist of the following two redox couples, Mˣ⁺(aq)/M(s) [E°red=+0.15 V] and Fe³⁺(aq)/Fe(s)...
- One half cell in a voltaic cell is constructed by dipping silver rod in AgNO₃ solution of unknown concentration, other half cell...
- At 298 K, the molar conductivity of x% (w/w) MX solution (aqueous) is 123.5 S cm² mol⁻¹. The conductance of same solution is...
- Consider the following data. | Electrolyte | Λ°m (S cm² mol⁻¹) | |---|---| | BaCl₂ | x₁ | | H₂SO₄ | x₂ | | HCl | x₃ | BaSO₄ is...
- The conductivity of centimolar solution of KCl at 25^ is 0.0210 ohm^ -1 cm^ -1 and the resistance of the cell containing the...
- The molar conductance of NaCl, HCl and CH_3COONa at infinite dilution are 126.45, 426.16 and 91.0 S cm^2 mol^ -1 respectively....
- The molar conductivity of 0.007 M acetic acid is 20 S cm^2 mol^ -1 . What is the dissociation constant of acetic acid? Choose the...
- Match List I with List II List-I (Cell): A. Leclanche cell, B. Ni-Cd cell, C. Fuel cell, D. Mercury cell List-II...
- The standard reduction potentials at 298 K for the following half cells are given below : Cr₂O₇²⁻ + 14H⁺ + 6e⁻ → 2Cr³⁺ + 7H₂O, E°...
- Which of the following statements is not correct about rusting of iron?
- The hydrogen electrode is dipped in a solution of pH = 3 at 25°C. The potential of the electrode will be – ____ × 10⁻² V....
- The mass of silver (Molar mass of Ag : 108 gmol⁻¹) displaced by a quantity of electricity which displaces 5600 mL of O₂ at S.T.P....
- A constant current was passed through a solution of AuCl₄⁻ ion between gold electrodes. After a period of 10.0 minutes, the...
- The mass of zinc produced by the electrolysis of zinc sulphate solution with a steady current of 0.015 A for 15 minutes is ______...
- The metals that are employed in the battery industries are A. Fe B. Mn C. Ni D. Cr E. Cd Choose the correct answer from the...
- Identify the factor from the following that does not affect electrolytic conductance of a solution.
- Number of alkanes obtained on electrolysis of a mixture of CH₃COONa and C₂H₅COONa is ________.
- One Faraday of electricity liberates x × 10⁻¹ gram atom of copper from copper sulphate. x is ________.
- If the conductivity of mercury at 0°C is 1.07 10^6 S m^ -1 and the resistance of a cell containing mercury is 0.243 , then the...
- A 5.0 m mol dm ^ -3 aqueous solution of KCl has a conductance of 0.55 mS when measured in a cell constant 1.3 cm ^ -1 . The molar...
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