This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Advanced > Syntax > Valency – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Valency Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What phase is this describing?Has no definite shape, Has a definite volume, Particles move quickly, Particles have strong forces between them A) Solid. B) Liquid. C) Gas. D) None!. Show Answer Correct Answer: B) Liquid. 2. Which subatomic particle has a negative charge? A) Proton. B) Neutron. C) Electron. D) None of the above. Show Answer Correct Answer: C) Electron. 3. How many electrons, protons and neutrons will be present in X-, if atomic number of X is 9 and mass number is 19? A) E = 10, P = 9, N = 10. B) E = 9, P = 10, N = 10. C) E = 10, P = 10, N = 10. D) E = 9, P = 9, N = 10. Show Answer Correct Answer: A) E = 10, P = 9, N = 10. 4. An example of an element which shows variable valency and an element which does not is A) Cu and Fe. B) Cu and Sn. C) Fe and Al. D) Fe and Pb. Show Answer Correct Answer: C) Fe and Al. 5. The Valency of a group 6 element is A) 6. B) 2. C) 3. D) 5. Show Answer Correct Answer: B) 2. 6. Argon is an inert gas because ..... A) Its octet is completed. B) It does not react with other substances. C) Its valency is zero. D) All of the above. Show Answer Correct Answer: D) All of the above. 7. Mg$^{2+}$ and Cl$^{-}$ create ..... A) Mg$_{}$Cl$_{}$$_{2}$. B) Mg$_{2}$Cl$_{}$. C) Mg$_{2}$Cl$_{}$$_{2}$. D) Mg$_{}$Cl$_{}$. Show Answer Correct Answer: A) Mg$_{}$Cl$_{}$$_{2}$. 8. Symbol of "Sodium" A) Na. B) K. C) Na. D) HCL. Show Answer Correct Answer: A) Na. 9. Which of the following about cations is correct? A) Cations are only non-metals. B) Cations are mostly negative. C) Cations where named after cats. D) Cations form when an atom has a mostly empty outer shell. Show Answer Correct Answer: D) Cations form when an atom has a mostly empty outer shell. 10. Which element or radical is a Trivalent cation A) Chromium. B) Sulphite. C) Dichromate. D) Nickel. Show Answer Correct Answer: A) Chromium. 11. What is the relationship between valency and the periodic table? A) Valency is the same for all elements regardless of their group. B) Valency is determined solely by an element's atomic mass. C) Valency has no relation to an element's position in the periodic table. D) Valency is related to an element's group number in the periodic table, influencing its bonding behavior. Show Answer Correct Answer: D) Valency is related to an element's group number in the periodic table, influencing its bonding behavior. 12. Ca is the chemical symbol for A) Chlorine. B) Copper. C) Calcium. D) Carbon. Show Answer Correct Answer: C) Calcium. 13. Which of these following pairs is correct? A) Silver-Au. B) Gold-Ag. C) Tin-Sn. D) None of the above. Show Answer Correct Answer: C) Tin-Sn. 14. How many valence electrons does carbon have? A) 4. B) 2. C) 6. D) 8. Show Answer Correct Answer: A) 4. 15. Which ion has a valency of 2? A) Hydroxide. B) Nitrate. C) Sulfate. D) Chloride. Show Answer Correct Answer: C) Sulfate. 16. How does the number of valence electrons affect an element's reactivity? A) Valence electrons have no impact on an element's reactivity. B) Elements with more valence electrons are always less reactive. C) The number of protons determines reactivity, not valence electrons. D) The number of valence electrons affects an element's reactivity by influencing its ability to gain, lose, or share electrons. Show Answer Correct Answer: D) The number of valence electrons affects an element's reactivity by influencing its ability to gain, lose, or share electrons. 17. Formulae of Zinc Oxide A) ZnO. B) OZn. C) ZnOH. D) ZnCl. Show Answer Correct Answer: A) ZnO. 18. The valency of phosphorous in PCl$_{3 }$and PCl$_{5 }$is A) 3 only. B) 5 only. C) 5 & 3. D) 3 & 5. Show Answer Correct Answer: D) 3 & 5. 19. What is the valency of Copper in its cupric form? A) 1. B) 2. C) 4. D) 3. Show Answer Correct Answer: B) 2. 20. What is the formula of nitric acid? A) H$_{2}$SO$_{4}$. B) HNO$_{3}$. C) HCl. D) Hno$_{3}$. Show Answer Correct Answer: B) HNO$_{3}$. 21. What is a chemical formula? A) Physical constant. B) Biological process. C) Symbolic representation of a chemical compound. D) Mathematical equation. Show Answer Correct Answer: C) Symbolic representation of a chemical compound. 22. What is the maximum amount of electrons present in the outermost shell? A) 1. B) 2. C) 8. D) 6. Show Answer Correct Answer: C) 8. 23. Which of the following does not have 8 valence electrons? A) Ne. B) He. C) Xe. D) Ar. Show Answer Correct Answer: B) He. 24. I am chlorine. I have 17 electrons. I am A) Metal. B) Non metal. C) Metalloid. D) None of the above. Show Answer Correct Answer: B) Non metal. 25. What is the formula of magnesium oxide? A) Mg$_{2}$O$_{2}$. B) MgO$_{2}$. C) Mg$_{2}$O$_{6}$. D) MgO. Show Answer Correct Answer: D) MgO. 26. What does the term duplet mean? A) Having 2 electron in outer most orbit. B) Having 2 electrons in only orbit. C) Having 8 electrons in outer most orbit. D) Having 2 electron in fist orbit. Show Answer Correct Answer: B) Having 2 electrons in only orbit. 27. H$_{3}$PO$_{4}$ is A) Phophorus oxide. B) Phosporus acid. C) Phophate ion. D) Phosporic acid. Show Answer Correct Answer: D) Phosporic acid. 28. Which of the following is a monovalent cation? A) Strontium. B) Lithium. C) Calcium. D) Barium. Show Answer Correct Answer: B) Lithium. 29. Which subatomic particle has a neutral or no charge? A) Proton. B) Neutron. C) Electron. D) None of the above. Show Answer Correct Answer: B) Neutron. 30. The chemical symbol for Potassium is A) Pa. B) P. C) Ag. D) K. Show Answer Correct Answer: D) K. 31. What is the name of an ionic compound formed from Calcium and Oxygen? A) Calcium Dioxide. B) Calcium Monoxide. C) Monocalcium Monoxide. D) Calcium Oxide. Show Answer Correct Answer: D) Calcium Oxide. 32. How does valency affect chemical bonding? A) Valency affects chemical bonding by determining the number of bonds an atom can form and the type of bonds it can participate in. B) Valency determines the color of the compound formed. C) Valency has no impact on chemical bonding. D) Valency affects the physical state of the compound. Show Answer Correct Answer: A) Valency affects chemical bonding by determining the number of bonds an atom can form and the type of bonds it can participate in. 33. Which is the correct formula for:one carbon (C)two oxygen (O) A) CO. B) CO$_{2}$. C) 2CO. D) C$_{2}$O. Show Answer Correct Answer: B) CO$_{2}$. 34. What is the atomic number of chlorine? A) 6. B) 11. C) 17. D) 8. Show Answer Correct Answer: C) 17. 35. She became a teacher. A) Subject + Monotransitive Verb + Direct Object. B) Subject + Copular Verb + Subjective Complement. C) Subject + Intransitive Verb + Optional adverbial. D) Subject + complex transitive Verb + Direct Object. Show Answer Correct Answer: B) Subject + Copular Verb + Subjective Complement. 36. Which elements has negative divalent elements A) Sulphur. B) Iodide. C) Sulphate. D) Cobalt. Show Answer Correct Answer: C) Sulphate. 37. The correct symbol for copper is ..... A) C. B) Cr. C) Cu. D) Cl. Show Answer Correct Answer: C) Cu. 38. Which of the following elements have a valency of 6? A) Oxygen (O), Selenium (Se), Tellurium (Te). B) Nitrogen (N), Phosphorus (P), Sulfur (S). C) Potassium (K), Boron (B), Helium (He). D) Carbon (C), Fluorine (F), Sodium (Na). Show Answer Correct Answer: D) Carbon (C), Fluorine (F), Sodium (Na). 39. My parents bought a new dress for me. A) Monotransitive. B) Ditransitive. C) Copular. D) Complex Transitive. E) Intransitive. Show Answer Correct Answer: B) Ditransitive. 40. How do you find an element's valency? A) Look for the number of isotopes. B) Weigh the element. C) Check if the compound is sour or sweet. D) Count the number of valence electrons in the outer shell. Show Answer Correct Answer: D) Count the number of valence electrons in the outer shell. 41. How many atoms are there in the compound MgCO$_{3}$? A) 5. B) 3. C) 6. D) 4. Show Answer Correct Answer: A) 5. 42. To find the number of valence electrons in an atom of a representative element, simply look at its ..... number. A) Group. B) Period. C) All the above. D) None of the above. Show Answer Correct Answer: A) Group. 43. Formula of "Aluminium Hydroxide" A) $AlOH_2$. B) $Al\left(OH\right)_2$. C) $AlOH$. D) $Al\left(OH\right)_3$. Show Answer Correct Answer: D) $Al\left(OH\right)_3$. 44. Valency of chloride ion is A) -1. B) 2. C) +1. D) 0. Show Answer Correct Answer: A) -1. 45. What is the tiniest particle in the entire universe? A) Cells. B) Liquids. C) Atoms. D) Gases. Show Answer Correct Answer: C) Atoms. 46. The balanced chemical equation is based on A) Law of definite proportion. B) Law of conservation. C) Law firm gravitation. D) Law of multiple proportion. Show Answer Correct Answer: B) Law of conservation. 47. How many electrons are present in the second energy level of an atom with atomic number 8? A) 2. B) 10. C) 8. D) 6. Show Answer Correct Answer: D) 6. 48. 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. 49. "My cup of coffee was drunk!" The word in italic is: A) Affecting. B) Theme. C) Experience. D) Agent. Show Answer Correct Answer: B) Theme. 50. How many valence electrons are found in atoms of aluminum? A) 13. B) 6. C) 16. D) 3. Show Answer Correct Answer: D) 3. 51. Which of the following elements have a valency of 7? A) Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I). B) Oxygen (O), Sulfur (S), Phosphorus (P), Carbon (C). C) Sodium (Na), Potassium (K), Lithium (Li), Rubidium (Rb). D) Nitrogen (N), Oxygen (O), Fluorine (F), Chlorine (Cl). Show Answer Correct Answer: A) Fluorine (F), Chlorine (Cl), Bromine (Br), Iodine (I). 52. Valence electrons in N is A) 3. B) 5. C) 7. D) 2. Show Answer Correct Answer: B) 5. 53. Zinc ion (Select the correct charge) A) +1. B) +2. C) +3. D) None of the above. Show Answer Correct Answer: B) +2. 54. How many valence electrons does a noble gas have? A) 4. B) 10. C) 8 (or 2 for helium). D) 6. Show Answer Correct Answer: C) 8 (or 2 for helium). 55. Valency of "Lithium" A) $1^+$. B) $2$. C) $1$. D) $0$. Show Answer Correct Answer: A) $1^+$. 56. Which of the following has valency 3? A) Phosphate. B) Nitrate. C) Sulphate. D) Thiosulphate. Show Answer Correct Answer: A) Phosphate. 57. All matter is made of what A) Compounds. B) Electrons. C) Atoms. D) Energy. Show Answer Correct Answer: C) Atoms. 58. 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. 59. The chemical name of the compound Na$_{2}$S$_{2}$O$_{3}$ A) Sodium thiosulphate. B) Disodiumsulphideoxide. C) Sodium sulphate. D) Sodiumdisulphidetrisulphide. Show Answer Correct Answer: A) Sodium thiosulphate. 60. A positively charged object and a neutral object will ..... A) Repel. B) Implode. C) Attract. D) Not experience an electric force. Show Answer Correct Answer: C) Attract. ← PreviousNext →Related QuizzesAdvanced QuizzesGrammar QuizzesValency Quiz 1Valency Quiz 2Valency Quiz 3Valency Quiz 4Valency Quiz 6Valency Quiz 7Valency Quiz 8Valency Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books