JEE Chemistry - MCQ Practice Questions

Which of the following is the SI unit of electrical conductivity?

In a galvanic cell, which electrode acts as the anode?

What is the charge on one mole of electrons?

The Nernst equation relates cell potential to concentration. At 25°C, which form is correct?

Which of the following statements about electrolysis is INCORRECT?

A metal X is more easily oxidized than metal Y. If X and Y form a galvanic cell, which metal acts as the anode?

The standard cell potential for a reaction is -0.5 V. What can be concluded about this reaction?

In the Daniel cell, the half-cell potentials are: Cu²⁺ + 2e⁻ → Cu, E° = +0.34 V and Zn²⁺ + 2e⁻ → Zn, E° = -0.76 V. Calculate E°cell:

How many grams of copper will be deposited when 2 faradays of electricity are passed through a copper sulfate solution?

Which of the following has the highest reduction potential?

What is the relationship between ΔG° and E°cell?

In electroplating of iron with copper, the cathode is made of:

The conductivity of a solution decreases with dilution because:

A cell has E°cell = 0. This means:

For the reaction: Zn + Cu²⁺ → Zn²⁺ + Cu, if the concentration of Cu²⁺ is increased at constant temperature, the cell potential will:

In the electrolysis of aqueous NaCl solution with inert electrodes, the products are:

The equivalent conductivity of a solution decreases with dilution. Which statement best explains this anomaly for strong electrolytes?

A galvanic cell constructed from two half-cells with E° values of +1.5 V and -0.3 V will have a cell potential of:

During the electrolysis of CuSO₄ solution with copper electrodes, which of the following occurs?

If the equilibrium constant K for a reaction at 25°C is 10¹⁰, what is the approximate standard cell potential? (Use F ≈ 96500 C/mol, R = 8.314 J/mol·K)