NEET Chemistry - MCQ Practice Questions

At 298 K, the vapor pressure of water is 23.8 mmHg. What is the mole fraction of water vapor in saturated air at this temperature?

For the reaction: N₂O₄(g) ⇌ 2NO₂(g), ΔH = 58 kJ/mol. If pressure is increased at constant temperature, the equilibrium will:

Which electrochemical cell cannot be recharged?

At 273 K, 1 mole of an ideal gas occupies 22.4 L. What will be its volume at 546 K and same pressure?

The rate constant for a first-order reaction is 0.693 min⁻¹. What is its half-life?

When 50 mL of 0.1 M HCl is mixed with 50 mL of 0.1 M NaOH, the resulting solution will have:

Which of the following factors does NOT affect the position of chemical equilibrium?

A solution has [H⁺] = 10⁻⁴ M at 25°C. What is the pH and pOH of this solution?

In a galvanic cell, which statement is always true?

Which colligative property is independent of the nature of the solute?

In the Nernst equation at 25°C, what is the value of (2.303RT/F)?