This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The maximum number of hydrogen bond that a water molecule can have are A) 1. B) 3. C) 2. D) 4. Show Answer Correct Answer: D) 4. 2. What happens to the valence electrons in the formation of a covalent bond? A) They are lost. B) They remain unchanged. C) They are shared. D) They are gained. Show Answer Correct Answer: C) They are shared. 3. Which of the following pair is expected to have the same bond order? A) O$_{2}$, N$_{2}$. B) O$_{2}$$^{+}$, N$_{2}$$^{-}$. C) O$_{2}$ $^{-}$, N$_{2}$$^{+}$. D) O$_{2}$$^{-}$, N$_{2}$$^{-}$. Show Answer Correct Answer: B) O$_{2}$$^{+}$, N$_{2}$$^{-}$. 4. Among the following, which has greater dipole moment? A) BF3. B) NF3. C) NH3. D) None of the above. Show Answer Correct Answer: C) NH3. 5. True or False:Everything on Earth (and the universe!) is made of different combinations of the elements found on the Periodic Table. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 6. What is the formal charge of an atom in a Lewis structure? A) Total bonding electrons only. B) Total valence electrons minus bonding electrons. C) Total valence electrons minus both lone and bonding electrons. D) Total valence electrons minus lone pair electrons. Show Answer Correct Answer: C) Total valence electrons minus both lone and bonding electrons. 7. A covalent bond in which the bonded atoms have an unequal attraction A) Nonpolar bond. B) Electronegativity. C) Diatomic. D) Polar bond. Show Answer Correct Answer: D) Polar bond. 8. The number of types of bonds between two carbon atoms in calcium carbide is A) Two sigma, two pi. B) One sigma, two pi. C) One sigma, one pi. D) Two sigma, one pi. Show Answer Correct Answer: B) One sigma, two pi. 9. State the electronic geometry, Bond angle and Molecular shape of SO2 Molecule A) Tetrahedral, 109.5$^\circ$, Trigonal pyramidal. B) Trigonal planar, 120$^\circ$, Trigonal planar. C) Trigonal planar, less than 120$^\circ$, Angular/Bent. D) None of the above. Show Answer Correct Answer: C) Trigonal planar, less than 120$^\circ$, Angular/Bent. 10. Diphosphorus pentoxide A) P$_{2}$O$_{5}$. B) PO$_{5}$. C) P$_{5}$O$_{2}$. D) P$_{2}$O$_{6}$. Show Answer Correct Answer: A) P$_{2}$O$_{5}$. 11. Lewis pictured an atom in terms of a ..... A) Stable Kernel. B) Positively charged Kernel. C) Negatively charged Kernel. D) None of the above. Show Answer Correct Answer: B) Positively charged Kernel. 12. Which of the following statements about molecular orbitals is true? A) They are formed by the combination of atomic orbitals. B) They are always higher in energy than atomic orbitals. C) They can only be formed from s orbitals. D) They do not follow the Pauli exclusion principle. Show Answer Correct Answer: A) They are formed by the combination of atomic orbitals. 13. Which of the following statement is true? (2001E) A) Hybridisation of the central atom in NH3 and CH4 is SP2. B) BeCl2 has "V" shape while SO2 is linear. C) SF6 is octahedral and F-S-F bond angle is 90$^\circ$. D) CO2 has dipole moment. Show Answer Correct Answer: C) SF6 is octahedral and F-S-F bond angle is 90$^\circ$. 14. Which of the following molecular shapes would have a bond angle of 180 Degrees? A) Bent. B) Trigonal Planar. C) Tetrahedral. D) Linear. Show Answer Correct Answer: D) Linear. 15. Which of the following compounds does not follow the octet rule? A) BCl3. B) NaCl. C) H2O. D) CH4. Show Answer Correct Answer: A) BCl3. 16. For which of the follwoing hybridisation the bond angle is maximum? A) Sp2. B) Sp. C) Sp3. D) DSp2. Show Answer Correct Answer: B) Sp. 17. In the Lewis structure of CO, how many total valence electrons are used? A) 6. B) 8. C) 10. D) 12. Show Answer Correct Answer: C) 10. 18. A nonpolar covalent bond is unlikely when two atoms of different elements join because the atoms are likely to differ in A) Density. B) State of matter. C) Electronegativity. D) Polarity. Show Answer Correct Answer: C) Electronegativity. 19. Chemical bonds form when atoms A) Combined nuclei. B) Give up neutrons. C) Gain protons. D) Share or transfer electrons. Show Answer Correct Answer: D) Share or transfer electrons. 20. What happens to the bond length as bond order increases? A) Bond length decreases. B) Bond length becomes unpredictable. C) Bond length increases. D) Bond length remains the same. Show Answer Correct Answer: A) Bond length decreases. 21. What are non-bonding or lone pairs? A) The pairs of electrons not involved in forming the covalent bond. B) The number of electrons not involved in forming the covalent bond. C) The number of electrons involved in forming the covalent bond. D) The pairs of electrons involved in forming the covalent bond. Show Answer Correct Answer: A) The pairs of electrons not involved in forming the covalent bond. 22. Which of the following has least bond energy? (2000 M) A) F2. B) H2. C) N2. D) O2. Show Answer Correct Answer: A) F2. 23. What is the shape of a molecule with the formula AB3E2? A) T-shaped. B) Linear. C) Trigonal planar. D) Bent. Show Answer Correct Answer: A) T-shaped. 24. True or False:All elements can bond to form molecules. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. A Bond formed by mutual sharing of electrons is called as A) Ionic bond. B) Covalent Bond. C) Hydrogen bond. D) None of the above. Show Answer Correct Answer: B) Covalent Bond. ← 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 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 10Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books