Science quiz Science – Chemistry Quiz By isitok - September 7, 2024 0 40 FacebookTwitterPinterestWhatsApp Page 1 of 20 1. What is the chemical symbol for gold? A) Ag B) Au C) Fe D) Pb Page 2 of 20 2. What is the most abundant gas in the Earth's atmosphere? A) Oxygen B) Nitrogen C) Carbon Dioxide D) Argon Page 3 of 20 3. What is the pH value of pure water at 25°C? A) 0 B) 4 C) 7 D) 14 Page 4 of 20 4. What type of bond involves the sharing of electron pairs between atoms? A) Ionic Bond B) Covalent Bond C) Hydrogen Bond D) Metallic Bond Page 5 of 20 5. What is the name of the process by which a liquid turns into a gas below its boiling point? A) Condensation B) Sublimation C) Evaporation D) Freezing Page 6 of 20 6. Who is known as the "father of modern chemistry" and is credited with developing the first periodic table of elements? A) Antoine Lavoisier B) Dmitri Mendeleev C) Robert Boyle D) Marie Curie Page 7 of 20 7. What is the chemical formula for table salt? A) NaCl B) KCl C) MgO D) CaCO3 Page 8 of 20 8. In which part of the atom does the chemical reaction take place? A) Nucleus B) Electron Cloud C) Proton D) Neutron Page 9 of 20 9. What is the process called when a solid turns directly into a gas without becoming a liquid first? A) Melting B) Sublimation C) Deposition D) Condensation Page 10 of 20 10. Which element has the atomic number 1? A) Helium B) Hydrogen C) Lithium D) Beryllium Page 11 of 20 11. What is the primary component of natural gas? A) Ethane B) Propane C) Methane D) Butane Page 12 of 20 12. What type of reaction occurs when two or more substances combine to form a new compound? A) Decomposition Reaction B) Single Replacement Reaction C) Double Replacement Reaction D) Synthesis Reaction Page 13 of 20 13. What is the common name for dihydrogen monoxide? A) Hydrogen Peroxide B) Methanol C) Water D) Ammonia Page 14 of 20 14. What is the term for a substance that speeds up a chemical reaction without being consumed in the process? A) Reactant B) Catalyst C) Solvent D) Solution Page 15 of 20 15. What is the term for the amount of energy required to remove an electron from an atom in its gaseous state? A) Electronegativity B) Ionization Energy C) Electron Affinity D) Atomic Radius Page 16 of 20 16. What is the name of the process in which an acid reacts with a base to produce salt and water? A) Oxidation B) Hydrolysis C) Neutralization D) Combustion Page 17 of 20 17. What is the law that states that matter cannot be created or destroyed in a chemical reaction? A) Law of Definite Proportions B) Law of Conservation of Energy C) Law of Conservation of Mass D) Law of Multiple Proportions Page 18 of 20 18. What is the name of the theory that describes how particles in a gas are in constant, random motion? A) Kinetic Molecular Theory B) Atomic Theory C) Quantum Theory D) Molecular Orbital Theory Page 19 of 20 19. What is the name of the process used to separate mixtures based on differences in boiling points? A) Filtration B) Distillation C) Chromatography D) Centrifugation Page 20 of 20 20. What is the primary component of Earth's crust, making up about 25% of its weight? A) Oxygen B) Silicon C) Aluminum D) Iron Please provide your contact information to proceed.Email Address *First Name *Consent *Yes, I agree with the privacy policy and terms and conditions.Start QuizSkip and continue
