This quiz works best with JavaScript enabled. Home > Grammar > Advanced > Syntax > Valency – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Valency Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Barium ion (Select the correct charge) A) +1. B) +2. C) +3. D) None of the above. Show Answer Correct Answer: B) +2. 2. Anions have which type of charge? A) Positive. B) Negative. C) All the above. D) None of the above. Show Answer Correct Answer: B) Negative. 3. Formula of baking soda A) NaHCO3. B) Nacl. C) H2SO4. D) None of the above. Show Answer Correct Answer: A) NaHCO3. 4. Helium A) 2. B) 1. C) 0. D) None of the above. Show Answer Correct Answer: C) 0. 5. What is the formula for a magnesium ion? A) Mg+. B) Mg$^{2+}$. C) Mg$^{2-}$. D) Mg$^{-}$. Show Answer Correct Answer: B) Mg$^{2+}$. 6. Symbol of Potassium A) P. B) Pu. C) Po. D) K. Show Answer Correct Answer: D) K. 7. What is the valency of Nitrate? A) -1. B) -2. C) -3. D) +1. Show Answer Correct Answer: A) -1. 8. Valency of Aluminium is ..... A) 1. B) 2. C) 3. D) None of the above. Show Answer Correct Answer: C) 3. 9. Valency of Li is A) +1. B) -1. C) +2. D) -2. Show Answer Correct Answer: A) +1. 10. Calcium A) 2.4. B) 3. C) 4. D) 2. Show Answer Correct Answer: D) 2. 11. Which is latest character of free fire A) Alok. B) Luketa. C) Clu. D) Jota. Show Answer Correct Answer: B) Luketa. 12. They fit the car into the parking space easily. A) Intransitive. B) Monotransitive. C) Ditransitive. D) Complex Transitive. E) Copular. Show Answer Correct Answer: D) Complex Transitive. 13. Symbol of Argon is ..... A) Ag. B) Ar. C) A. D) None of the above. Show Answer Correct Answer: B) Ar. 14. The electronic configuration of Potassium is A) 2, 8, 8, 1. B) 2, 8, 7. C) 2, 8, 8. D) 2, 8, 1. Show Answer Correct Answer: A) 2, 8, 8, 1. 15. What element has the chemical symbol-Ag? A) Magnesium. B) Argon. C) Mercury. D) Silver. Show Answer Correct Answer: D) Silver. 16. Which of the following elements are known as the 'Alkali Metals' and have a valency of 1? A) Lithium, sodium, potassium, rubidium, cesium, francium. B) Phosphorus, sulfur, chlorine. C) Carbon, oxygen, nitrogen. D) Iron, copper, zinc. Show Answer Correct Answer: A) Lithium, sodium, potassium, rubidium, cesium, francium. 17. What does octet mean? A) Having 2 electron in its outer most orbit. B) Having 8 electron in second orbit. C) Having 8 electron in its outer most orbit. D) Having 2 electron in first orbit. Show Answer Correct Answer: C) Having 8 electron in its outer most orbit. 18. Nitrate ion contains A) Nitrogen and oxygen. B) Nitrogen only. C) Nitrogen, hydrogen and oxygen. D) Sodium and nitrogen. Show Answer Correct Answer: A) Nitrogen and oxygen. 19. Which subatomic particle has a positive charge? A) Proton. B) Neutron. C) Electron. D) None of the above. Show Answer Correct Answer: A) Proton. 20. What is the valency of sodium in NaCl? A) -1. B) 2. C) 0. D) +1. Show Answer Correct Answer: D) +1. 21. Chemical formula of copper sulphate A) CuSO$_{4}$. B) Cu$_{2}$SO$_{4}$. C) CuSO$_{3}$. D) None of these. Show Answer Correct Answer: A) CuSO$_{4}$. 22. Which of the following is a negative ion with a valency of 1? A) Sulfate. B) Chloride. C) Phosphate. D) Carbonate. Show Answer Correct Answer: B) Chloride. 23. Which of the following elements have a valency of 2? A) Oxygen, nitrogen, hydrogen. B) Iron, copper, lead. C) Magnesium, calcium, zinc, strontium, barium and radium. D) Carbon, phosphorus, sulfur. Show Answer Correct Answer: C) Magnesium, calcium, zinc, strontium, barium and radium. 24. Iron A) 2, 3. B) 2. C) 1, 2. D) 3. Show Answer Correct Answer: A) 2, 3. 25. Aluminium hydroxide A) AlOH. B) Al(OH)$_{2}$. C) Al(OH)$_{3}$. D) Al$_{2}$(OH)$_{3}$. Show Answer Correct Answer: C) Al(OH)$_{3}$. ← PreviousNext →Related QuizzesAdvanced QuizzesGrammar QuizzesValency Quiz 1Valency Quiz 2Valency Quiz 4Valency Quiz 5Valency Quiz 6Valency Quiz 7Valency Quiz 8Valency Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books