JEE Chemistry - MCQ Practice Questions

For a galvanic cell: Cu²⁺ + 2e⁻ → Cu (E° = 0.34 V) and Zn²⁺ + 2e⁻ → Zn (E° = -0.76 V). What is the standard cell potential (E°cell)?

Which electrode reaction occurs at the anode in a galvanic cell?

A solution has [H⁺] = 1 × 10⁻⁷ M and [OH⁻] = 1 × 10⁻⁷ M at 25°C. Which statement is true?

The standard reduction potential for Zn²⁺/Zn is -0.76 V and for Cu²⁺/Cu is +0.34 V. Calculate E°cell for Zn-Cu galvanic cell.

Which factor does NOT affect the rate of a chemical reaction?

Which of the following has maximum boiling point?

For electrodeposition of copper using 1 Faraday of charge, how many moles of Cu are deposited? Cu²⁺ + 2e⁻ → Cu

Which of the following best explains why diamond is harder than graphite?

Which of the following factors does NOT affect the value of the equilibrium constant Kc?

The molar heat capacity at constant pressure (Cp) for an ideal gas is 29 J/(mol·K). Its molar heat capacity at constant volume (Cv) is approximately:

In a first-order reaction, if the half-life is 10 minutes, the time taken for the concentration to reduce to $\frac{1}{4}$th of initial value is: