JEE Chemistry - MCQ Practice Questions

The relationship between equivalent conductance (Λ) and molar conductance (Λm) is:

During the electrolysis of aqueous CuSO₄ solution with copper electrodes, which reaction occurs at the cathode?

The Gibbs free energy change for an electrochemical cell reaction is related to cell potential by:

In the electrorefining of copper, impure copper acts as:

In the electrolysis of dilute H₂SO₄ with inert electrodes, if 2 moles of electrons flow, what volume of gases (in liters at STP) will be produced?

The cell potential of a galvanic cell decreases during operation because:

For the reaction: Fe³⁺ + e⁻ → Fe²⁺ (E° = +0.77 V) and Cl₂ + 2e⁻ → 2Cl⁻ (E° = +1.36 V), which is the strongest oxidizing agent?

During the electrolysis of molten NaCl using inert electrodes, if 2.3 g of Na is deposited at the cathode, what volume of Cl₂ gas (at STP) will be released at the anode?

A galvanic cell is constructed using Zn|Zn²⁺ and Cu|Cu²⁺ half-cells. If the concentration of Zn²⁺ is increased from 1 M to 10 M at 25°C, how does this affect the cell potential? (E°cell = 1.1 V)