ATDH Domain 6: General Chemistry Welcome to your ATDH Domain 6: General Chemistry 1. ATDH: General Chemistry In the context of chemical equilibrium, which statement accurately describes the effect of increasing the temperature on an exothermic reaction at equilibrium? A. The equilibrium shifts to the left, favoring the reactants. B. The equilibrium shifts to the right, favoring the products. C. The equilibrium constant, K, remains unchanged. D. The rate of the forward reaction decreases. None 2. ATDH: General Chemistry What is the hybridization of the carbon atoms in ethylene (C2H4)? A. sp B. sp2 C. sp3 D. sp3d None 3. ATDH: General Chemistry What is the pH of a 0.01 M HCl solution? A. 1 B. 2 C. 3 D. 4 None 4. ATDH: General Chemistry Which of the following elements has the highest electronegativity? A. Fluorine (F) B. Chlorine (Cl) C. Bromine (Br) D. Iodine (I) None 5. ATDH: General Chemistry Which principle explains the increase in ionization energy across a period in the periodic table? A. Hund's Rule B. Pauli Exclusion Principle C. Aufbau Principle D. Effective Nuclear Charge (Zeff) None 6. ATDH: General Chemistry In the formation of a salt from a reaction between an acid and a base, what is the role of the acid? A. To donate a hydroxide ion (OH-) B. To donate a proton (H+) C. To accept a proton (H+) D. To accept an electron pair None 7. ATDH: General Chemistry What is the primary factor that determines the boiling point of a molecular compound? A. Molecular weight B. Ionic bond strength C. Intermolecular forces D. Electron configuration None 8. ATDH: General Chemistry Which of the following is a property of gases that increases with an increase in temperature at constant pressure? A. Density B. Solubility in water C. Volume D. Viscosity None 9. ATDH: General Chemistry Which concept explains the observation that the shape of a molecule with three bonded atoms and one lone pair on the central atom is trigonal pyramidal? A. VSEPR theory B. Molecular orbital theory C. Hybridization theory D. Lewis structure theory None 10. ATDH: General Chemistry What is the outcome of mixing an aqueous solution of silver nitrate (AgNO3) with an aqueous solution of sodium chloride (NaCl)? A. A precipitation reaction occurs, forming silver chloride (AgCl) as a precipitate. B. A redox reaction occurs, exchanging electrons between silver and sodium ions. C. An acid-base neutralization reaction occurs, forming water and salt. D. No reaction occurs as both compounds are soluble in water. None 11. ATDH: General Chemistry What principle is violated when two electrons with the same spin occupy the same orbital in an atom? A. Hund's Rule B. Pauli Exclusion Principle C. Aufbau Principle D. Heisenberg Uncertainty Principle None 12. ATDH: General Chemistry Which term best describes the energy change associated with the removal of an electron from a gaseous atom? A. Electron affinity B. Electronegativity C. Ionization energy D. Bond dissociation energy None 13. ATDH: General Chemistry In a redox reaction, what is the role of the substance that is oxidized? A. It gains electrons. B. It loses electrons. C. It acts as a catalyst. D. It increases the reaction rate. None 14. ATDH: General Chemistry What type of intermolecular force is primarily responsible for the high boiling point of water compared to other group 16 hydrides? A. London dispersion forces B. Dipole-dipole interactions C. Hydrogen bonding D. Ionic bonding None 15. ATDH: General Chemistry What is the oxidation state of manganese in potassium permanganate (KMnO4)? A. 7 B. 4 C. 2 D. -1 None 16. ATDH: General Chemistry What is the major product of the reaction between 2-butene and hydrogen gas in the presence of a palladium catalyst? A. Butane B. 1-Butene C. Butadiene D. 2-Butanol None 17. ATDH: General Chemistry In the context of molecular orbital theory, what is the bond order of diatomic nitrogen (N2)? A. 1 B. 2 C. 3 D. 4 None 18. ATDH: General Chemistry Which of the following is a characteristic of a reaction that is first-order in reactant A? A. The rate of the reaction doubles when the concentration of A doubles. B. The rate of the reaction is independent of the concentration of A. C. The rate of the reaction quadruples when the concentration of A doubles. D. The rate of the reaction halves when the concentration of A doubles. None 19. ATDH: General Chemistry What type of solid is characterized by a high melting point, electrical conductivity in molten state, and is composed of positive and negative ions? A. Molecular solid B. Covalent network solid C. Metallic solid D. Ionic solid None 20. ATDH: General Chemistry Which of the following statements is true regarding the solubility product constant (Ksp) of a sparingly soluble salt? A. It decreases as temperature decreases. B. It is independent of the ionic strength of the solution. C. It increases as the solubility of the salt increases. D. It represents the maximum concentration of ions that can be dissolved in water. None 21. ATDH: General Chemistry In a buffer solution made from acetic acid (CH3COOH) and sodium acetate (CH3COON A. what is the role of sodium acetate? A) To decrease the pH of the solution B. To act as a weak base and neutralize added acid C. To increase the concentration of hydronium ions D. To act as a strong acid and neutralize added base None 22. ATDH: General Chemistry What is the primary mechanism by which radiation causes damage to biological tissues? A. Photodissociation B. Ionization and free radical formation C. Reduction-oxidation reactions D. Electrophile addition None 23. ATDH: General Chemistry What effect does a catalyst have on the activation energy of a chemical reaction? A. It increases the activation energy. B. It decreases the activation energy. C. It has no effect on the activation energy. D. It increases the energy of the products. None 24. ATDH: General Chemistry Which statement accurately describes the behavior of an ideal gas according to the kinetic molecular theory? A. Gas particles exert significant attractive forces on each other. B. The volume of the gas particles is significant compared to the volume of the container. C. Gas particles are in constant, random motion, colliding elastically with the walls of the container. D. The average kinetic energy of gas particles decreases with an increase in temperature. None 25. ATDH: General Chemistry Which of the following accurately describes the effect of a catalyst on the equilibrium position of a reversible reaction? A. It favors the formation of products. B. It favors the formation of reactants. C. It has no effect on the equilibrium position. D. It increases the concentration of both reactants and products. None 26. ATDH: General Chemistry In the context of acid-base chemistry, what is the significance of the pKa value of an acid? A. It indicates the concentration of the acid in solution. B. It measures the acid's ability to donate a proton. C. It signifies the temperature at which the acid dissociates. D. It determines the acid's strength by its dissociation extent in water. None 27. ATDH: General Chemistry Which element has the highest first ionization energy in the periodic table? A. Fluorine (F) B. Helium (He) C. Oxygen (O) D. Neon (Ne) None 28. ATDH: General Chemistry What is the result of mixing equal volumes of 0.1 M HCl and 0.1 M NaOH? A. A neutral solution with a pH of 7 B. An acidic solution with a pH less than 7 C. A basic solution with a pH greater than 7 D. A buffer solution with a pH of 7 None 29. ATDH: General Chemistry Which principle explains why electrons fill degenerate orbitals singly before pairing? A. Pauli Exclusion Principle B. Aufbau Principle C. Hund's Rule D. Heisenberg Uncertainty Principle None 30. ATDH: General Chemistry What is the major product of the reaction between 2-butene and hydrogen gas in the presence of a palladium catalyst? A. Butane B. 1-Butene C. Butadiene D. 2-Butanol None 1 out of 30 Time is Up! Time's up
