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.
Which of the following is true about the direction of electron flow in an electrochemical cell?Which of the following is a state function?Which of the following statements best describes the purpose of a buffer solution in a titration experiment?According to Bohr's atomic model, electrons occupy specific energy levels or shells. Which statement accurately describes the behavior of electrons…Consider the molecule H2CO (formaldehyde). Which of the following statements about its bonding is FALSE?What type of bond is formed between two nonmetal atoms that have similar electronegativities?Which of the following processes is an example of a situation where ΔG is always negative?What is the oxidation state of a pure element in its standard state?Which of the following statements regarding metallic bonding is correct?Which of the following statements about a reducing agent is true?Which of the following equations correctly represents the relationship between the rate constant (k) and temperature (T)?Which of the following correctly represents the stoichiometry of the compound water (H2O)?The entropy change (ΔS) of the surroundings for an endothermic reaction is:Which of the following scenarios represents an increase in entropy?Which of the following statements regarding ionization energy is FALSE?A reaction is found to follow second-order kinetics with respect to one of the reactants. Which of the following changes…Which of the following is a property of bases?What is the maximum number of electrons that can occupy the 2p subshell?Which of the following statements accurately describes a covalent bond?In molecular orbital theory, which of the following statements regarding bonding and antibonding orbitals is TRUE?Which of the following is a correct step in balancing a redox reaction using the half-reaction method?For a zero-order reaction, the plot of concentration versus time is:Which of the following statements best describes the relationship between activation energy (Ea) and reaction rate?Which of the following compounds will exhibit both dipole-dipole interactions and hydrogen bonding?Which of the following relationships represents Boyle's Law?How does the presence of a catalyst affect kinetic and thermodynamic control in a reaction?When comparing the kinetics and thermodynamics of a reaction, which statement is true?Which subatomic particle has the least contribution to the mass of an atom?Consider the following reaction: A ↔ B. Which of the following conditions would favor the kinetic product?Which of the following factors would NOT affect the colligative properties of a solution?When chromium reacts with a certain compound, it exhibits an oxidation state of +6. Which of the following compounds could…Which of the following statements regarding polar covalent bonds is FALSE?Given the reaction: 2H2(g) + O2(g) → 2H2O(l) ΔH° = -484 kJ/mol If the temperature of the reaction increases, which…Which of the following is a property of bases?According to the Brønsted-Lowry definition, a base is a substance that:An atom of carbon-14 undergoes beta decay. Which of the following is the resulting nucleus?How does decreasing the volume of a reaction vessel affect the position of equilibrium?Which of the following statements about unsaturated solutions is true?What effect does increasing the temperature have on an exothermic reaction at equilibrium?Who proposed that energy is quantized and exists in discrete packets called "quanta"?Which of the following best describes the principal quantum number (n) in the quantum mechanical model of atoms?According to the Van der Waals equation of state, at high pressures, the volume occupied by a real gas is?Which of the following is an example of an unbalanced chemical equation?Which of the following gases would have the highest average velocity at the same temperature?Which of the following is the correct definition of a compound?The ideal gas law combines which of the following gas laws?A reaction between iron (Fe) and oxygen (O2) produces iron(III) oxide (Fe2O3). How many moles of oxygen are required to…A chemical equation is unbalanced if:The pH of a 0.01 M solution of a strong monoprotic acid is closest to:A reaction has a ΔG value of -20 kJ/mol at 25°C. What would be the ΔG value at 50°C assuming…