This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry Basics > Chemistry – Quiz 38 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 38 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the formula formed from atom A and Z? [Proton number of A = 11; Z = 8] A) A2Z3. B) AZ2. C) AZ. D) A2Z. Show Answer Correct Answer: D) A2Z. 2. These contain only one kind of atom. A) Element. B) Compound. C) Mixture. D) Water. Show Answer Correct Answer: A) Element. 3. Deals with substances that are chemical combinations of elements other than carbon. A) Physical chemistry. B) Organic chemistry. C) Inorganic chemistry. D) Biochemistry. E) Analytical chemistry. Show Answer Correct Answer: C) Inorganic chemistry. 4. What is produced when lithium oxide dissolves in water? A) Lithium carbonate. B) Lithium hydroxide. C) Water. D) Hydrogen gas. Show Answer Correct Answer: B) Lithium hydroxide. 5. What is the difference between an element and a compound? A) An element is a pure atom and a compound is a combination of atoms. B) An element is a pure substance and a compound is a combination of elements. C) Elements are mixtures and compounds are chemically combined. D) A element can be made of different atoms and substances while compounds are made of only two different elements. Show Answer Correct Answer: B) An element is a pure substance and a compound is a combination of elements. 6. Energy due to motion is ..... energy. A) Potential. B) Energy. C) Kinetic. D) Friction. Show Answer Correct Answer: C) Kinetic. 7. Granite is an igneous rock that contains the minerals quartz, feldspar, mica and others. The exact composition will vary from sample to sample. Granite is a(n) ..... A) Element. B) Compound. C) Heterogeneous mixture. D) Homogenous mixture/solution. Show Answer Correct Answer: C) Heterogeneous mixture. 8. The definition of an oil is A) Fat that is solid at room temperature. B) Fat that is liquid at room temperature. C) Any yellow or green liquid. D) Greasy substance that only contains saturated fats. Show Answer Correct Answer: B) Fat that is liquid at room temperature. 9. The fact that matter is not created or destroyed in any chemical or physical change is called the ..... A) Law of Thermodynamics. B) Newton's Law. C) Law of Conservation of Mass. D) Law of Superposition. Show Answer Correct Answer: C) Law of Conservation of Mass. 10. A student calculates that they should produce 12.5g of MgO in lab. After the lab, the weighs the MgO, and finds that he made 10.8g of MgO. What is his theoretical yield? A) 10.8g. B) 12.5g. C) 86.4. D) None of the above. Show Answer Correct Answer: B) 12.5g. 11. What is a homogeneous mixture? A) A mixture that is the same throughout. B) A mixture that is made up of one type of atom. C) A mixture that is made up of one type of compound. D) A mixture that cannot be separated through physical changes. Show Answer Correct Answer: A) A mixture that is the same throughout. 12. Pounds = ..... kg A) 1.75. B) 1.81. C) 2.01. D) 2.34. Show Answer Correct Answer: B) 1.81. 13. A mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together is called a(n) A) Dipole. B) Lewis structure. C) Chemical bond. D) London force. Show Answer Correct Answer: C) Chemical bond. 14. Saltwater is classified as what type of matter? A) An atom. B) An element. C) A compound. D) A mixture. Show Answer Correct Answer: D) A mixture. 15. Which of the following represents an element? A) H2O. B) H. C) NaCl. D) CaCO3. Show Answer Correct Answer: B) H. 16. What are atoms? A) More than one element combined. B) The largest particle of matter that exists. C) Made up of only pure substances. D) Smallest particles of matter that make up everything around us. Show Answer Correct Answer: D) Smallest particles of matter that make up everything around us. 17. What are some examples of monounsaturated fats? A) Butter, mayonaise, dairy. B) Vegetable oil. C) Olive oil, avocados, peanuts. D) Animal products. Show Answer Correct Answer: C) Olive oil, avocados, peanuts. 18. The smallest particle of an element that shows all the properties of that element. A) Subatomic Particles. B) Atom. C) Quarks. D) Gluons. Show Answer Correct Answer: B) Atom. 19. Matter that can vary in composition A) Compound. B) Element. C) Atom. D) Mixture. Show Answer Correct Answer: D) Mixture. 20. Which halogenoalkane reacts fastest with sodium hydroxide? A) 1-iodobutane. B) 1-chlorobutane. C) 2-chloro-2-methylpropane. D) 2-iodo-2-methylpropane. Show Answer Correct Answer: D) 2-iodo-2-methylpropane. ← PreviousNext →Related QuizzesChemistry QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books