This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or False:Some molecules will bond to other molecules, forming large structures. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 2. An element M reacts with chlorine to form a compound X. The bond angle in X is 120$^\circ$. What is M? (2002-M) A) Be. B) B. C) Mg. D) N. Show Answer Correct Answer: B) B. 3. Bond energy and the corresponding bond length vary directly with each other. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 4. MX6 is a molecule with octahedral geometry. How many X-M-X bonds are at 180$^\circ$? A) Four. B) Two. C) Three. D) Six. Show Answer Correct Answer: C) Three. 5. How many electrons are involved in a triple bond? A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: C) 6. 6. What is released when a bond dissociation occurs? A) Energy. B) Electrons. C) Protons. D) Neutrons. Show Answer Correct Answer: A) Energy. 7. What elements generally make a covalent bond? A) Metal and nonmetal. B) 2 or more nonmetals. C) Metal. D) None of the above. Show Answer Correct Answer: B) 2 or more nonmetals. 8. VSEPR stands for ..... theory. A) Valence Structure of Electron Pyramids and Regression. B) Varied Structures of Electrons Paired and Replaced. C) Varied Shell Energy of Protons and Radiation. D) Valence Shell Electron Pair Repulsion. Show Answer Correct Answer: D) Valence Shell Electron Pair Repulsion. 9. What is the definition of bond angle? A) The angle between lone pairs of electrons in a molecule. B) The angle between the nuclei of two bonded atoms. C) The angle between the orbitals containing bonding electron pairs around the central atom in a molecule/complex ion. D) The angle between the valence electrons of two different atoms. Show Answer Correct Answer: C) The angle between the orbitals containing bonding electron pairs around the central atom in a molecule/complex ion. 10. Is malleability a characteristic of most metals? If yes, explain how metallic bonding accounts for this property. A) Yes, because metallic bonds allow atoms to slide past each other. B) No, because metallic bonds are rigid and prevent movement. C) Yes, because metallic bonds are ionic in nature. D) No, because metallic bonds are covalent in nature. Show Answer Correct Answer: A) Yes, because metallic bonds allow atoms to slide past each other. 11. What is the bond order in a molecule with a triple bond? A) 2. B) 4. C) 1. D) 3. Show Answer Correct Answer: D) 3. 12. What is bond length defined as? A) The distance between two non-bonded atoms. B) The distance between the centers of two ions. C) The distance between the outermost electrons of two atoms. D) The distance between the nuclei of two bonded atoms. Show Answer Correct Answer: D) The distance between the nuclei of two bonded atoms. 13. What is the primary factor that determines the polarity of a bond? A) The size of the atoms. B) The electronegativity difference between the atoms. C) The bond length. D) The temperature of the reaction. Show Answer Correct Answer: B) The electronegativity difference between the atoms. 14. Find the pair with sp2 hybridisation of the central molecule A) NH$_{3}$ and NO$_{2}$$^{-}$. B) BF$_{3}$ and NH$_{2}$$^{-}$. C) BF$_{3}$ and NO$_{2}$$^{-}$. D) NH2$^{-}$ and H$_{2}$O. Show Answer Correct Answer: C) BF$_{3}$ and NO$_{2}$$^{-}$. 15. If an atom loses two electrons what charge will it have? A) + 2. B) -2. C) +1. D) -1. Show Answer Correct Answer: A) + 2. 16. How do isotopes of an element differ from each other? A) Isotopes of an element differ in their atomic number. B) Isotopes of an element differ in their electron configuration. C) Isotopes of an element differ in their chemical properties. D) Isotopes of an element differ in the number of neutrons in their nuclei. Show Answer Correct Answer: D) Isotopes of an element differ in the number of neutrons in their nuclei. 17. What element forms a triple bond? A) Magnesium. B) Iodine. C) Nitrogen. D) Flourine. Show Answer Correct Answer: C) Nitrogen. 18. What is the term for the stable electronic arrangement of eight electrons in the outer shell? A) Stable rule. B) Duet rule. C) Valence rule. D) Octet rule. Show Answer Correct Answer: D) Octet rule. 19. Which of the following compounds is an exception to the typical formation of ionic compounds? A) MgO. B) CaF2. C) NaCl. D) NH4+. Show Answer Correct Answer: D) NH4+. 20. The geometry of a molecule with 3 bonded pairs of electrons and 0 lone pairs of electrons A) Tetrahedral. B) Trigonal Planar. C) Bent. D) Trigonal Pyramidal. E) Linear. Show Answer Correct Answer: B) Trigonal Planar. 21. A polar molecule contains A) Ions. B) A region of positive charge and a region of negative charge. C) Only London forces. D) No bonds. Show Answer Correct Answer: B) A region of positive charge and a region of negative charge. 22. Describe the atomic structure of an atom. A) An atom consists of only protons in the nucleus. B) Electrons are located in the nucleus of an atom. C) The atomic structure of an atom includes protons and electrons only. D) The atomic structure of an atom includes a nucleus composed of protons and neutrons, with electrons orbiting around the nucleus in energy levels. Show Answer Correct Answer: D) The atomic structure of an atom includes a nucleus composed of protons and neutrons, with electrons orbiting around the nucleus in energy levels. 23. If two covalently bonded atoms are identical, the bond is A) Nonpolar covalent. B) Polar covalent. C) Dipole covalent. D) Coordinate covalent. Show Answer Correct Answer: A) Nonpolar covalent. 24. Which of the following molecule is not polar? A) NH3. B) NF3. C) BF3. D) CHCl3. Show Answer Correct Answer: C) BF3. 25. Covalent bonding is between a A) Nonmetal and nonmetal. B) Metal and nonmetal. C) Metal and metal. D) It depends on the situation. Show Answer Correct Answer: A) Nonmetal and nonmetal. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 1Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 2Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 3Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 4Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 5Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 6Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 7Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 8Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 9Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books