alleryStart learning →B.Sc Chemistry Chemical Equilibrium — practice questions
Explore 26 free Chemical Equilibrium questions in B.Sc Chemistry Chemistry. Each question opens with answer choices, the correct answer and a worked solution.
Practise Chemical Equilibrium with Quill →Chemical Equilibrium MCQs with answers
Showing questions 1–26 of 26.
Le Chatelier's principle says that if a system at equilibrium is disturbed, the system will shift in the direction that:Read the answer and worked solution →For the reaction aA + bB ⇌ cC + dD at equilibrium, the equilibrium constant Kc is:Read the answer and worked solution →For an exothermic reaction at equilibrium, increasing temperature will shift the equilibrium:Read the answer and worked solution →Le Chatelier's principle states that a system at equilibrium responds to a stress by:Read the answer and worked solution →For the reaction N2 + 3H2 ⇌ 2NH3, increasing pressure favours:Read the answer and worked solution →Relation between Kp and Kc for a gas reaction with Δn_gas = change in moles of gas:Read the answer and worked solution →For an endothermic reaction, increasing T shifts equilibrium:Read the answer and worked solution →For dissociation of weak acid HA in water: HA ⇌ H+ + A-. Equilibrium constant is called:Read the answer and worked solution →pH of a 0.01 M HCl solution:Read the answer and worked solution →pOH of a solution with pH = 8.5 (at 25°C):Read the answer and worked solution →Solubility product Ksp of AgCl is 1.6 × 10⁻¹⁰. Its solubility in pure water (mol/L):Read the answer and worked solution →For a buffer solution containing weak acid HA and its salt NaA, the pH is approximately:Read the answer and worked solution →At equilibrium for an exothermic reaction, increasing pressure (for gas reaction with Δn < 0):Read the answer and worked solution →At 500 K, Kc for N2 + 3H2 ⇌ 2NH3 is 60 (in mol⁻² L²). Kp at 500 K (R = 0.0821):Read the answer and worked solution →For weak acid HA with Ka = 10⁻⁵, [H+] in 0.1 M solution is approximately:Read the answer and worked solution →Buffer capacity is maximum when:Read the answer and worked solution →A weak base BOH has Kb = 1.8 × 10⁻⁵. pH of 0.1 M solution is approximately:Read the answer and worked solution →Solubility of CaF2 in water (Ksp = 4.0 × 10⁻¹¹):Read the answer and worked solution →For the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g), if initial pressure of PCl5 is P0 and degree of dissociation is α, total pressure at equilibrium:Read the answer and worked solution →For the reaction 2SO2(g) + O2(g) ⇌ 2SO3(g), at equilibrium increasing pressure:Read the answer and worked solution →If K = 1 for a reaction, the standard free energy change ΔG°:Read the answer and worked solution →At 298 K, water has Kw = 10⁻¹⁴. Concentration of H+ in pure water:Read the answer and worked solution →At equilibrium, the ratio of forward to reverse reaction rates:Read the answer and worked solution →In a saturated solution of AgCl, [Ag+] = 1.26 × 10⁻⁵. If KNO3 is added (no common ion), solubility of AgCl:Read the answer and worked solution →For the reaction H2(g) + I2(g) ⇌ 2HI(g) with Kc = 50 at 800 K, if [H2] = [I2] = 0.01 M initially, equilibrium [HI]:Read the answer and worked solution →Degree of dissociation α of weak acid HA (Ka = 1.8 × 10⁻⁵) in 0.01 M solution:Read the answer and worked solution →
How to practise
- Choose a Chemical Equilibrium question and try to work out your answer.
- Open the question to check the correct answer and read its worked solution.
- Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.