This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Advanced > Syntax > Valency – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Valency Quiz 4 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The valency of which of these elements is NOT '4'? A) Carbon. B) Oxygen. C) Fluorine. D) None of the above. Show Answer Correct Answer: B) Oxygen. 2. Which of the following elements has a negative valency? A) He. B) Pb. C) S. D) Cu. Show Answer Correct Answer: C) S. 3. The electrons involved in chemical bonds are called ..... electrons. A) Valence. B) Van Der Waals. C) Ionic. D) Covalent. Show Answer Correct Answer: A) Valence. 4. How many orbitals are in the f sublevel A) 3. B) 7. C) 5. D) 1. Show Answer Correct Answer: B) 7. 5. The amount of energy needed to change a material from a solid to a liquid state. A) Heat of Fusion. B) Heat of Liquids. C) Heat of Solids. D) Heat of Vaporization. Show Answer Correct Answer: A) Heat of Fusion. 6. The particles that are found in the nucleus of an atom are A) Neutrons and electrons. B) Electrons only. C) Protons and neutrons. D) Protons and electrons. Show Answer Correct Answer: C) Protons and neutrons. 7. Name the elements present in Ammonia A) Nitrogen. B) Hydrogen. C) Both nitrogen and hydrogen. D) None of the above. Show Answer Correct Answer: C) Both nitrogen and hydrogen. 8. What is the valency of Copper [II]? A) 1. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: B) 2. 9. Valence electrons in Neon is A) 6. B) 2. C) 0. D) 8. Show Answer Correct Answer: D) 8. 10. Valency of Hydroxide A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: A) 1. 11. Fluorine is in Group 7. It has seven electrons on its outer shell. What is its valency? A) 2. B) 1. C) 5. D) 7. Show Answer Correct Answer: B) 1. 12. Anions are ..... that form ..... ions and ..... electrons. A) Nonmetals, positive, lose. B) Metals, positive, lose. C) Metals, positive, gain. D) Nonmetals, negative, gain. Show Answer Correct Answer: D) Nonmetals, negative, gain. 13. Hg is the chemical symbol for A) Mercury. B) Lead. C) Silver. D) Potassium. Show Answer Correct Answer: A) Mercury. 14. Calculate the valency of magnesium. A) 2. B) 3. C) 4. D) 1. Show Answer Correct Answer: A) 2. 15. All the properties of ionic compounds are correct EXCEPT: A) Force of attraction between a cation and an anion. B) Cation is positive and anion is negative. C) Electrons are shared between the molecules. D) Metals lose electrons which are gained by the non-metals. Show Answer Correct Answer: C) Electrons are shared between the molecules. 16. If an ion gains an electron, it becomes A) Negative. B) Positive. C) Atomic. D) Stable. Show Answer Correct Answer: A) Negative. 17. Which of the following is a tetravalent element? A) Carbon. B) Nitrogen. C) Hydrogen. D) Oxygen. Show Answer Correct Answer: A) Carbon. 18. Valency of lithium is A) 4. B) 2. C) 1. D) 3. Show Answer Correct Answer: C) 1. 19. The symbol for Potassium is A) Ka. B) K. C) Po. D) P. Show Answer Correct Answer: B) K. 20. The formula of iron(II) hydroxide is A) FeOH$_{2}$. B) Fe(OH)$_{2}$. C) Fe(OH)$_{3}$. D) FeOH. Show Answer Correct Answer: B) Fe(OH)$_{2}$. 21. Calculate the valency of nitrogen in NH3. A) 2. B) 4. C) 3. D) 1. Show Answer Correct Answer: C) 3. 22. Which of the following is a p block element? A) Ar. B) Ca. C) Au. D) Re. Show Answer Correct Answer: A) Ar. 23. The smallest particle of a substance is ..... A) Compound. B) Molecule. C) Element. D) Atom. Show Answer Correct Answer: D) Atom. 24. What is the chemical formula of sodium sulfate? A) SoSO$_{4}$. B) Na$_{2}$SO$_{4}$. C) NaSO$_{4}$. D) SSO$_{4}$. Show Answer Correct Answer: B) Na$_{2}$SO$_{4}$. 25. Molecules are closest together in a A) Solid. B) Plasma. C) Gas. D) Liquid. Show Answer Correct Answer: A) Solid. 26. What are the elements known as the 'superheroes' of the periodic table with a valency of 8? A) Alkali metals. B) Noble gases. C) Alkaline earth metals. D) Halogens. Show Answer Correct Answer: B) Noble gases. 27. A molecule of a compound is electrically ..... A) Negative. B) Either a) or b). C) Positive. D) Neutral. Show Answer Correct Answer: D) Neutral. 28. What is the atomic number of carbon? A) 12. B) 5. C) 7. D) 6. Show Answer Correct Answer: D) 6. 29. How many valence electrons are found in atoms of group 14? A) 16. B) 3. C) 4. D) 14. Show Answer Correct Answer: C) 4. 30. What is the valency of Chlorine (Cl)? A) 0. B) 1. C) 2. D) 3. Show Answer Correct Answer: B) 1. ← PreviousNext →Related QuizzesAdvanced QuizzesGrammar QuizzesValency Quiz 1Valency Quiz 2Valency Quiz 3Valency Quiz 5Valency Quiz 6Valency Quiz 7Valency Quiz 8Valency Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books