This quiz works best with JavaScript enabled. Home > Grammar > Advanced > Syntax > Valency – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Valency Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If an electron is removed, an ion becomes A) An atom. B) Positive. C) Negative. D) Neutral. Show Answer Correct Answer: B) Positive. 2. Element or compound?H$_{2}$O A) Element. B) Compound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Compound. 3. Which element has '0' valency? A) Helium. B) Chlorine. C) Bromine. D) None of the above. Show Answer Correct Answer: A) Helium. 4. Calcium has valency of A) +2. B) -1. C) +1. D) -2. Show Answer Correct Answer: A) +2. 5. Which atom is most likely to form a 1-ion? A) F. B) S. C) K. D) Na. Show Answer Correct Answer: A) F. 6. What is the valency of an element with 4 electrons in its outermost shell? A) 2. B) 8. C) 6. D) 4. Show Answer Correct Answer: D) 4. 7. How many valence electrons are found in atoms of group 15? A) 4. B) 5. C) 2. D) 3. Show Answer Correct Answer: B) 5. 8. Silicon atom has ..... valence electrons. A) 0. B) 2. C) 4. D) 6. Show Answer Correct Answer: C) 4. 9. Intransitive verbs need a direct object to be complete A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. Adding heat to a solid makes the particles move ..... A) Particles in a solid are not moving. B) Slower. C) At the same rate as before the heat was applied. D) Faster. Show Answer Correct Answer: D) Faster. 11. I am sodium. I have 11 electrons. My electronic distribution in shells are A) 0.2, 8. B) 1, 8, 2. C) 8, 1, 2. D) 2, 8, 1. Show Answer Correct Answer: D) 2, 8, 1. 12. $Cr_{2_{ }}O_7^{-2}$ A) Peroxide. B) Permanganate. C) Plumbite. D) Dichromate. Show Answer Correct Answer: D) Dichromate. 13. Formula of "sodium oxide" A) $Na_1O$. B) $Na_2O$. C) $O_2Na$. D) $Na_3O$. Show Answer Correct Answer: B) $Na_2O$. 14. Bromine A) 1. B) 2. C) 4. D) 2, 3. Show Answer Correct Answer: A) 1. 15. Provide an example of a compound and its valency. A) Carbon Dioxide (CO2)-Carbon (valency 4), Oxygen (valency 2). B) Ammonia (NH3)-Nitrogen (valency 3), Hydrogen (valency 2). C) Water (H2O)-Hydrogen (valency 1), Oxygen (valency 2). D) Sodium Chloride (NaCl)-Sodium (valency 1), Chlorine (valency 3). Show Answer Correct Answer: C) Water (H2O)-Hydrogen (valency 1), Oxygen (valency 2). 16. Are there any compounds on the periodic table A) Yes there are many. B) No because only elements are on the periodic table. C) I think they are?. D) None of the above. Show Answer Correct Answer: B) No because only elements are on the periodic table. 17. SiO$_{2}$$^{2-}$is the valency for: A) Silicon Dioxide. B) Silicate. C) Silicate dioxide. D) Silicon. Show Answer Correct Answer: B) Silicate. 18. Potassium carbonate A) KCO$_{3}$. B) K(CO$_{3}$)$_{2}$. C) K$_{2}$CO$_{3}$. D) K$_{2}$(CO$_{3}$)$_{2}$. Show Answer Correct Answer: C) K$_{2}$CO$_{3}$. 19. In the compound CO2, how many Oxygen atoms share their electrons with 1 Carbon atom? A) 4. B) 3. C) 2. D) 1. Show Answer Correct Answer: C) 2. 20. Write the formula of the following compound.Magnesium hydroxide. A) Mg(OH)$_{3}$. B) Mg(OH)$_{2}$. C) Mg OH$_{2}$. D) None of the above. Show Answer Correct Answer: B) Mg(OH)$_{2}$. 21. Outer shell electrons are called A) Outer electrons. B) Valence electrons. C) Negatives. D) None of the above. Show Answer Correct Answer: B) Valence electrons. 22. Formulae of Ferrous Oxide A) FeOH. B) FeO. C) Fe2. D) FeCl2. Show Answer Correct Answer: B) FeO. 23. Atoms are electrically neutral when A) They have a minimal charge. B) They have a balanced number of protons and neutrons. C) They have a balanced number of protons and electrons. D) They have no valance electrons. Show Answer Correct Answer: C) They have a balanced number of protons and electrons. 24. Is water an element or a compound? A) Element. B) Compound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Compound. 25. Name of the formula "Calcium Hydroxide" A) $ca\left(OH\right)_2$. B) $Ca\left(OH\right)_3$. C) $Ca\left(OH\right)_2$. D) $Ca\left(OH\right)_4$. Show Answer Correct Answer: C) $Ca\left(OH\right)_2$. ← 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