This quiz works best with JavaScript enabled. Home > Grammar > Advanced > Syntax > Valency – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Valency Quiz 12 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How many electrons are present in the second energy level of an atom with atomic number 8? A) 2. B) 6. C) 10. D) 8. Show Answer Correct Answer: B) 6. 2. Chloride is a: A) Monovalent Cation. B) Monovalent Anion. C) Divalent Cation. D) Divalent Anion. Show Answer Correct Answer: B) Monovalent Anion. 3. Elements having 8 valence electrons are A) Stable and inert. B) High reactivity. C) Unstable and inert. D) Radioactive. Show Answer Correct Answer: A) Stable and inert. 4. Hydroxide ion A) -1. B) -2. C) -3. D) None of the above. Show Answer Correct Answer: A) -1. 5. "My cup of coffee was drunk!" The word in italic is: A) Agent. B) Experience. C) Theme. D) Affecting. Show Answer Correct Answer: C) Theme. 6. How many valence electrons are found in atoms of aluminum? A) 6. B) 3. C) 13. D) 16. Show Answer Correct Answer: B) 3. 7. Which of the following elements have a valency of 7? A) Oxygen (O), Sulfur (S), Phosphorus (P), Carbon (C). B) Nitrogen (N), Oxygen (O), Fluorine (F), Chlorine (Cl). C) Sodium (Na), Potassium (K), Lithium (Li), Rubidium (Rb). D) Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I). Show Answer Correct Answer: D) Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I). 8. Valence electrons in N is A) 7. B) 2. C) 5. D) 3. Show Answer Correct Answer: C) 5. 9. Zinc ion (Select the correct charge) A) +1. B) +2. C) +3. D) None of the above. Show Answer Correct Answer: B) +2. 10. How many valence electrons does a noble gas have? A) 4. B) 6. C) 10. D) 8 (or 2 for helium). Show Answer Correct Answer: D) 8 (or 2 for helium). 11. Valency of "Lithium" A) $1$. B) $1^+$. C) $0$. D) $2$. Show Answer Correct Answer: B) $1^+$. 12. Which of the following has valency 3? A) Nitrate. B) Sulphate. C) Phosphate. D) Thiosulphate. Show Answer Correct Answer: C) Phosphate. 13. All matter is made of what A) Energy. B) Atoms. C) Electrons. D) Compounds. Show Answer Correct Answer: B) Atoms. 14. As a material is heated, it's particles ..... A) Get smaller. B) Slow down. C) Get cooler. D) Move more quickly. Show Answer Correct Answer: D) Move more quickly. 15. The chemical name of the compound Na$_{2}$S$_{2}$O$_{3}$ A) Sodium thiosulphate. B) Sodium sulphate. C) Sodiumdisulphidetrisulphide. D) Disodiumsulphideoxide. Show Answer Correct Answer: A) Sodium thiosulphate. 16. A positively charged object and a neutral object will ..... A) Attract. B) Repel. C) Not experience an electric force. D) Implode. Show Answer Correct Answer: A) Attract. 17. Which group has the greatest number of valence electrons? A) 1. B) 14. C) 18. D) 16. Show Answer Correct Answer: C) 18. 18. Valency of dichromate is A) +1. B) +2. C) -1. D) -2. Show Answer Correct Answer: D) -2. 19. The formula of sodium carbonate is A) NaCO$_{3}$. B) Na(CO$_{3}$)$_{2}$. C) Na$_{2}$CO$_{3}$. D) None of the above. Show Answer Correct Answer: C) Na$_{2}$CO$_{3}$. 20. A subatomic particle that has a negative charge A) Proton. B) Neutron. C) Electron. D) Atom. E) Quark. Show Answer Correct Answer: C) Electron. 21. Argon A) 0. B) 1. C) 4. D) None of the above. Show Answer Correct Answer: A) 0. 22. Which problem is balanced? A) PbO$_{2}$ + 2H$_{2}$$\rightarrow$ H$_{2}$SO$_{4}$. B) SO$_{2}$ + H$_{2}$0 $\rightarrow$ H$_{2}$SO$_{4}$. C) 2Na + 2H$_{2}$O $\rightarrow$ 2NaOH + H$_{2}$. D) 2Na + 2H$_{2}$O $\rightarrow$ 2NaOH + H. Show Answer Correct Answer: C) 2Na + 2H$_{2}$O $\rightarrow$ 2NaOH + H$_{2}$. 23. Determine the valency of chlorine in HCl. A) 2. B) 3. C) 4. D) 1. Show Answer Correct Answer: D) 1. 24. The capacity of the M shell is ..... , but in Potassium, the M shell holds ..... electrons. A) 2 electrons, 8. B) 18 electrons, 8. C) 8 electrons, 18. D) 32 electrons, 18. Show Answer Correct Answer: B) 18 electrons, 8. 25. What is the chemical formula of Magnesium chloride? A) MgCl. B) MgCl$_{2}$. C) MgC. D) MgC$_{2 }$. Show Answer Correct Answer: B) MgCl$_{2}$. 26. The name of KHCO$_{3}$ is A) Potassium carbonate. B) Potassium hydrogencarbonate. C) All the above. D) None of the above. Show Answer Correct Answer: B) Potassium hydrogencarbonate. 27. I am an important element needed for the survival of all the organisms. I have 8 electrons. My valency is A) 0. B) 1. C) 2. D) 3. Show Answer Correct Answer: C) 2. 28. Valency of nitride is A) -1. B) -2. C) -3. D) -4. Show Answer Correct Answer: C) -3. 29. The innermost energy level has a maximum of how many electrons? A) 1. B) 2. C) 6. D) 8. Show Answer Correct Answer: B) 2. 30. NaHCO$_{3 }$represents A) Sodium bicarbonate. B) Sodium carbonate. C) Sodium Chloride. D) Calcium Carbonate. Show Answer Correct Answer: A) Sodium bicarbonate. ← PreviousNext →Related QuizzesAdvanced QuizzesGrammar QuizzesValency Quiz 1Valency Quiz 2Valency Quiz 3Valency Quiz 4Valency Quiz 5Valency Quiz 6Valency Quiz 7Valency Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books