This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 37 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which of the following represents an element? A) H2O. B) H. C) NaCl. D) CaCO3. Show Answer Correct Answer: B) H. 3. 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. 4. 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. 5. 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. 6. Matter that can vary in composition A) Compound. B) Element. C) Atom. D) Mixture. Show Answer Correct Answer: D) Mixture. 7. 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. 8. A part of a sample with uniform composition and properties A) Phase. B) Homogeneous Mixture. C) Heterogenous Mixture. D) Compound. Show Answer Correct Answer: A) Phase. 9. Changing the phase, size or shape of something ..... A) Chemical change. B) Physical Change. C) Suspension. D) Colloid. Show Answer Correct Answer: B) Physical Change. 10. Number of moles present in 22.0g of carbondioxide is A) 2. B) 22. C) 0.5. D) 0.25. Show Answer Correct Answer: C) 0.5. 11. Which of the following is NOT an example of a chemical reaction? A) Wood Burning. B) A cake baking in an oven. C) Melting Ice Cream. D) Mixing Vinegar and Baking Soda. Show Answer Correct Answer: C) Melting Ice Cream. 12. Which of the following will not undergo reaction? A) Zinc metal + zinc oxide. B) Iron metal + copper oxide. C) Zinc metal + iron oxide. D) Magnesium + iron oxide. Show Answer Correct Answer: A) Zinc metal + zinc oxide. 13. $ \ \ ZnS\ +\ \ HCI\ \longrightarrow\ ZnCl\ \ +H\ \ S$ A) $ \ \ 5 Zn S\ +\ \ 2HCL\ \longrightarrow\ 4 ZnCl\ \ +H_ 4\ \ S$. B) $ \ \ 2ZnS\ +\ \ 2HCI\ \longrightarrow\ ZnCl_2\ \ +H_2S$. C) $ \ \ 2ZnS\ +\ \ 2HCI\ \longrightarrow\ ZnCl_2\ \ +H_3S$. D) None of above. Show Answer Correct Answer: B) $ \ \ 2ZnS\ +\ \ 2HCI\ \longrightarrow\ ZnCl_2\ \ +H_2S$. 14. If a mystery element is shiny, brittle and a conductor, you would look under which category? A) Metals. B) Nonmetals. C) Metalloids. D) Elements. Show Answer Correct Answer: C) Metalloids. 15. Oxygen was discovered by which of the following scientists? A) J. Priestly. B) J. Black. C) Ibn e sina. D) You. Show Answer Correct Answer: A) J. Priestly. 16. Which subatomic particle has a neutral charge. A) Protons. B) Neutrons. C) Electrons. D) Nucleus. Show Answer Correct Answer: B) Neutrons. 17. What is the IUPAC name for CH3CH2CH(CH3)CH3? A) 1, 1-dimethylpropane. B) 2-ethylpropane. C) 2-methylbutane. D) 3-methylbutane. Show Answer Correct Answer: C) 2-methylbutane. 18. The study of chemicals that, in general, do not contain carbon. A) Biochemistry. B) Inorganic chemistry. C) Organic chemistry. D) Physical Chemistry. E) Analytical Chemistry. Show Answer Correct Answer: B) Inorganic chemistry. 19. PH measures the presence or what kind of ions? A) Sulfur. B) Oxygen. C) Nitrogen. D) Hydrogen. Show Answer Correct Answer: D) Hydrogen. 20. The minimum amount of energy required to get a reaction to start. A) Activation energy. B) Catalyst. C) Enzymes. D) Calories. Show Answer Correct Answer: A) Activation energy. ← PreviousNext →Related QuizzesScience QuizzesChemistry Quiz 1Chemistry Quiz 2Chemistry Quiz 3Chemistry Quiz 4Chemistry Quiz 5Chemistry Quiz 6Chemistry Quiz 7Chemistry Quiz 8Chemistry Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books