Chemistry MCAT Practice Questions
671 free Chemistry MCAT-style practice questions, covering topics like Atomic Structure, The Periodic Table, Bonding and Chemical Interactions, Compounds and Stoichiometry, Chemical Kinetics, Equilibrium, and more.
The solubility of a gas in a liquid generally:Which of the following is true about the relationship between the EMF and the cell potential (Ecell) of an electrochemical…Which of the following is a consequence of the assumption that gas particles are point masses in the ideal gas…Which of the following is not a colligative property of a solution?Which of the following statements is true about an isochoric process?According to the Brønsted-Lowry definition, an acid is a substance that:Which of the following rate laws represents a zero-order reaction?Which of the following is an example of a disproportionation reaction?The rate law expression for a reaction provides information about:Which of the following is true about a buffer solution?Which of the following substances is considered a Lewis acid?The half-life of a first-order reaction:The change in enthalpy (ΔH) for an exothermic reaction is?In the reaction Mg + Cl2 → MgCl2, which of the following is true?Which of the following is an example of a reversible process?The atomic weight of an element is:Which of the following is a state function?Given the balanced chemical equation: 2C2H6 + 7O2 → 4CO2 + 6H2O, how many moles of oxygen (O2) are required…Which of the following is true about the pKa of a weak acid?Which of the following is an example of a balanced chemical equation?What is the hybridization of the central atom in the compound SF6?A voltaic cell is constructed using Zn(s) and Pb(s) electrodes with their respective Zn^{2+}(aq) and Pb^{2+}(aq) solutions. Which of the…Which of the following is true about the relationship between ΔG° and the spontaneity of an electrochemical cell reaction?In the half-reaction method, which of the following is true about the final balanced equation?A compound contains 45% carbon, 5% hydrogen, and 50% oxygen by mass. What is its empirical formula?Which scientist proposed that electrons exhibit both particle and wave-like properties?Which control is more likely to result in a mixture of products?According to Planck's quantum theory, the energy of a photon is directly proportional to its:Which of the following is a property of bases?Which of the following is true about the species included in a net ionic equation?Consider the reaction: MnO4^- + 8H^+ + 5e^- → Mn^2+ + 4H2O What is the change in oxidation state of…A gas sample at 273 K and 1 atm pressure occupies a volume of 22.4 L. If the pressure is…Which of the following is true about cell potentials?Which of the following statements correctly describes an ionic bond?A gas sample is initially at a pressure of 1 atm and a volume of 1 L. If the volume…Which of the following statements is true regarding electron spin?Which element is often used as a reference in assigning oxidation states to other elements?According to the Bohr model of the atom, which of the following statements is true regarding electron transitions?According to Le Chatelier's Principle, what happens when the pressure of a reaction system is increased?Which of the following factors does NOT influence the selectivity between kinetic and thermodynamic products in a chemical reaction?In a sealed container at equilibrium, the concentration of nitrogen dioxide (NO2) is found to be 0.10 M. If the…In the half-reaction method, what is the purpose of balancing the number of electrons transferred?A reaction M + N ⇌ O has an equilibrium constant Kc of 0.1 at a certain temperature. If the…Which of the following statements regarding the van der Waals equation is FALSE?Which of the following is true about the reduction half-reaction in the half-reaction method?An unknown metal X forms a divalent cation with a radius of 74 pm and has a coordination number of…Which of the following best defines a system in thermochemistry?How does an increase in the concentration of reactants affect the rate constant (k) of a chemical reaction?For a process at equilibrium, the Gibbs free energy change (ΔG) is:Which of the following processes is associated with an increase in entropy?