Punjab Board Class 12 Chemistry — Important Questions 2026

Soft drink bottles are sealed under high pressure of CO₂ to:

According to Raoult's law, the partial vapour pressure of a component in a solution is:

When a non-volatile solute is added to a pure solvent, the vapour pressure of the solution compared to the pure solvent is:

Which of the following is NOT a colligative property?

Molar conductivity (Λm) is related to conductivity (κ) and concentration (c) by which formula?

What happens to the molar conductivity of a strong electrolyte as its concentration decreases?

According to Kohlrausch's Law of Independent Migration of Ions, the limiting molar conductivity of an electrolyte is:

In Faraday's First Law of Electrolysis, the amount of substance deposited at an electrode is proportional to:

For the reaction: Rate = k[A]^½[B]², what is the overall order of the reaction?

The molecularity of a reaction is defined as:

Which of the following is the correct integrated rate equation for a zero order reaction?

For a first order reaction, the half-life (t₁/₂) is given by: