This quiz works best with JavaScript enabled. Home > Grammar > Advanced > Syntax > Valency – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Valency Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Symbol of Zinc A) Zn. B) Z. C) Zi. D) None of the above. Show Answer Correct Answer: A) Zn. 2. What is the formula for this compound:Magnesium and Oxygen A) MgO. B) Mg$_{2}$O. C) Mg$_{2}$O$_{3}$. D) MgO$_{3}$. Show Answer Correct Answer: A) MgO. 3. $O_2^{-2}$ A) Peroxide. B) Permanganate. C) Plumbite. D) Dichromate. Show Answer Correct Answer: A) Peroxide. 4. Symbol of Calcium A) Cu. B) Co. C) Ca. D) C. Show Answer Correct Answer: C) Ca. 5. What element in Period 4 has 5 valence electrons? A) Zr. B) As. C) V. D) Sb. Show Answer Correct Answer: B) As. 6. What is the valency of Fluorine? A) 3. B) 1. C) 4. D) 2. Show Answer Correct Answer: B) 1. 7. How many electrons can the first energy level hold? A) 1. B) 2. C) 8. D) 0. Show Answer Correct Answer: B) 2. 8. Which element loses 1 valence electron to form a stable bond? A) Oxygen (O). B) Hydrogen (H). C) Sodium (Na). D) Chlorine (Cl). Show Answer Correct Answer: C) Sodium (Na). 9. An ion has what type of charge? A) Negative. B) Positive. C) All the above. D) None of the above. Show Answer Correct Answer: A) Negative. 10. Which of the following element has valency of one A) Carbon. B) Sodium. C) Potassium. D) Both (b) and (c). Show Answer Correct Answer: D) Both (b) and (c). 11. Valency of Helium is A) 1. B) 2. C) 0. D) 3. Show Answer Correct Answer: C) 0. 12. Symbol of "Silver" A) Ag. B) Ag. C) AG. D) Au. Show Answer Correct Answer: A) Ag. 13. He coined first time the term Symbol of an element A) John Dalton. B) Avogadro. C) Berzelius. D) Aristotle. Show Answer Correct Answer: C) Berzelius. 14. Barium ion A) +1. B) +2. C) +3. D) None of the above. Show Answer Correct Answer: B) +2. 15. Valency of "Magnesium" A) $2^-$. B) $2^+$. C) $3^-$. D) $3^+$. Show Answer Correct Answer: B) $2^+$. 16. What element has the chemical symbol-I? A) Iron. B) Lead. C) Iodine. D) Lithium. Show Answer Correct Answer: C) Iodine. 17. Fluoride ion A) -1. B) -2. C) -3. D) None of the above. Show Answer Correct Answer: A) -1. 18. Balance this equation ..... Zn+ ..... HCl$\rightarrow$ ..... ZnCl$_{2 }$+ ..... H$_{2}$ A) 1, 1, 2, 1. B) 1, 1, 1, 2. C) 1, 2, 1, 1. D) 2, 1, 1, 1. Show Answer Correct Answer: C) 1, 2, 1, 1. 19. Potassium A) 1. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: A) 1. 20. Which of the following elements has zero valency A) Helium. B) Neon. C) Above two. D) None of the above. Show Answer Correct Answer: C) Above two. 21. Anions and Cations form what type of compound? A) Covalent. B) Ionic. C) Balled. D) None of the above. Show Answer Correct Answer: B) Ionic. 22. Which of the following is the correct ionic formula for a Barium and Hydrogen compound? A) BaH$_{4}$. B) Ba$_{3}$H$_{4}$. C) BaH$_{2}$. D) Ba$_{2}$H$_{3}$. Show Answer Correct Answer: C) BaH$_{2}$. 23. Nitrate ion A) -1. B) -2. C) -3. D) None of the above. Show Answer Correct Answer: A) -1. 24. SYmbol of "Bromine" A) Bi. B) B. C) Br. D) Be. Show Answer Correct Answer: C) Br. 25. Most suitable element and most widely accepted standard unit for the measurement of atomic mass A) Oxygen. B) Carbon. C) Nitrogen. D) None of the above. Show Answer Correct Answer: B) Carbon. ← 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