NEET Chemistry - MCQ Practice Questions

Which of the following is the correct expression for the equilibrium constant (Kc) for the reaction: N₂(g) + 3H₂(g) ⇌ 2NH₃(g)?

What is the pH of a 0.01 M HCl solution?

The rate constant of a first-order reaction is 0.693 s⁻¹. What is the half-life of this reaction?

For the reaction: 2A + B → C, if the rate law is Rate = k[A]²[B], what is the overall order of the reaction?

What is the relationship between ΔG, ΔH, and ΔS?

At 298 K, the solubility product of AgCl is 1.8 × 10⁻¹⁰. What is the solubility of AgCl in mol/L?

Which of the following exhibits the highest lattice energy?

For the reaction 2H₂ + O₂ → 2H₂O, ΔH = -572 kJ/mol. How much heat is released when 4 moles of H₂ react?

The osmotic pressure of a solution at 27°C containing 0.1 mol of solute in 1 L is approximately:

For a first-order reaction with half-life of 69.3 minutes, the rate constant k is:

In electrochemistry, the reduction potential of Cu²⁺/Cu is +0.34 V and Zn²⁺/Zn is -0.76 V at 25°C. What is E°cell for Zn-Cu cell?

The number of orbitals in a subshell with l = 2 is:

A solution contains 342 g of sucrose (M = 342 g/mol) dissolved in 1000 mL of water. The molarity of the solution is:

For the reaction 2H₂ + O₂ → 2H₂O, ΔH° = -572 kJ/mol. The enthalpy change for forming 1 mole of water is:

At constant temperature and pressure, which thermodynamic quantity determines the spontaneity of a reaction?

What is the cell potential (E°cell) for a galvanic cell with E°cathode = +0.80 V and E°anode = -0.40 V?

A first-order reaction has a rate constant k = 0.693 s⁻¹. Calculate the half-life of this reaction.

Which of the following is true for an endothermic reaction?

A solution has pH = 4. What is the concentration of H⁺ ions?

In electrolysis, if 2 moles of electrons are transferred, how many moles of Cu will be deposited from CuSO₄ solution? (Atomic mass of Cu = 64)