This quiz works best with JavaScript enabled. Home > Science > Chemistry > Chemistry – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Chemistry Quiz 11 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In which 0.01M solution is phenolphthalein pink? )) A) CH3COOH (aq). B) H2CO3 (aq). C) HCl (aq). D) KOH (aq). Show Answer Correct Answer: D) KOH (aq). 2. How many bananas in 3.5 moles of bananas? A) 3.5. B) 3.5 x 6.02 x 1023. C) 35 / 6.02 x 1023. D) None of above. Show Answer Correct Answer: B) 3.5 x 6.02 x 1023. 3. The major macromolecules of life are A) Lipids, proteins, carbohydrates, nucleic acids. B) Nucleic acid and water. C) Lipids and fats. D) DNA. Show Answer Correct Answer: A) Lipids, proteins, carbohydrates, nucleic acids. 4. Which of the following is a decomposition reaction? A) MgCo3 $\rightarrow$ MgO + CO2. B) SO3 + H2O $\rightarrow$ H2SO4. C) 2 Mg + O2 $\rightarrow$ 2MgO. D) None of above. Show Answer Correct Answer: A) MgCo3 $\rightarrow$ MgO + CO2. 5. The universal solvent A) Salt water. B) Oxygen. C) Water. D) Nitrogen. Show Answer Correct Answer: C) Water. 6. What are polar covalent bonds? A) Electrons are shared equally. B) Electrons are shared unequally. C) Electrons are transferred. D) None of above. Show Answer Correct Answer: B) Electrons are shared unequally. 7. Element X is a solid that is brittle, lacks luster, and has six valence electrons. In which group on the Periodic Table would element X be found. A) 1. B) 2. C) 15. D) 16. Show Answer Correct Answer: D) 16. 8. In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for this chemical reaction? A) Energy is absorbed in the reaction. B) Energy is released in the reaction. C) There is no transfer of energy in the reaction. D) None of above. Show Answer Correct Answer: B) Energy is released in the reaction. 9. What term is given to a reaction which transfers heat energy from the surroundings, to the system? A) Endothermic. B) Reversible. C) Exothermic. D) Activation energy. Show Answer Correct Answer: A) Endothermic. 10. Steroids are a type of ..... A) Nucleic Acid. B) Lipid. C) Cholesterol. D) Protein. Show Answer Correct Answer: B) Lipid. 11. ..... refer to the body of knowledge. A) Cost. B) Consumer products. C) Science. D) Composition. Show Answer Correct Answer: C) Science. 12. A type of bond that gives 3-dimensional shapes to molecules like DNA A) Hydrogen. B) Ionic. C) Covalent. D) None of above. Show Answer Correct Answer: A) Hydrogen. 13. It is the properties that do not depend on the amount of the substance of the materials A) Extensive properties. B) Intensive properties. C) Physical properties. D) Chemical properties. Show Answer Correct Answer: A) Extensive properties. 14. For the Balanced Reaction:3 Mg + 1 Fe2O3 $\rightarrow$ 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe? A) 3mol Mg / 2 mol Fe. B) 2 mol Mg/ 3 mol Fe. C) 1 mol Fe/ 2 mol Fe. D) 3 mol MgO / 2 mol Fe. Show Answer Correct Answer: D) 3 mol MgO / 2 mol Fe. 15. Which is also called Stranger Gas? A) Neon. B) Argon. C) Xenon. D) Nitrous oxide. Show Answer Correct Answer: C) Xenon. 16. An atom of iodine has 7 valence electrons. What will an atom of iodine MOST likely do to be stable? A) Lose 1 electron. B) Lost 7 electrons. C) Gain 1 electron. D) Neither gain nor lose any valence electrons. Show Answer Correct Answer: C) Gain 1 electron. 17. The ore which is found in abundance in India is A) Bauxite. B) Fluorspar. C) Monazite. D) Magnetite. Show Answer Correct Answer: C) Monazite. 18. Bonds between atoms in a molecule form as a result of the sharing of? A) Formulas. B) Electrons. C) Atoms. D) Chemicals. Show Answer Correct Answer: B) Electrons. 19. Which biomolecule helps form muscles? A) Nucleic Acid. B) Carbohydrate. C) Protein. D) Lipids. Show Answer Correct Answer: C) Protein. 20. Building blocks of proteins A) Monosaccharides. B) Glycerol and fatty acids. C) Neucleotides. D) Amino acids. Show Answer Correct Answer: D) Amino acids. ← 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