This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In which of the following substances will hydrogen bond be strongest? A) HCl. B) H$_{2}$O. C) HI. D) H$_{2}$S. Show Answer Correct Answer: B) H$_{2}$O. 2. According to the octet rule, how many electrons do atoms strive to have in their outer shell? A) 8. B) 2. C) 6. D) 4. Show Answer Correct Answer: A) 8. 3. Electric Conductivity A) A property that describes the ability of an electric current to pass through a material. B) A chemical formula that shows the arrangement of atoms in a molecule or a polyatomic ion. C) A property that describes the ability of the material to be pulled into thin wire without breaking. D) The arrangement of electrons in relation to the central atom of the molecule. Show Answer Correct Answer: A) A property that describes the ability of an electric current to pass through a material. 4. Which of the following statement is correct regarding SF4 molecule? A) SF4 molecule is bent shaped. B) SF4 molecule hasTrigonal bipyramidal shape. C) SF4 has SP$^{3}$d hybridisation. D) SF4 has SP3d$^{2}$ hybridisation. Show Answer Correct Answer: C) SF4 has SP$^{3}$d hybridisation. 5. Which of the following angle corresponds to sp2 hybridisation? A) 90$^\circ$. B) 120$^\circ$. C) 180$^\circ$. D) 109$^\circ$. Show Answer Correct Answer: B) 120$^\circ$. 6. Which among the following chemical bond were described by Kossel and Lewis? A) Metallic bond. B) Polar covalent bond. C) Coordinate bond. D) Ionic and Covalent bond. Show Answer Correct Answer: D) Ionic and Covalent bond. 7. How are covalent bonds explained? A) When one atom takes the other atom's electron. B) When the atom shares an electron with an another atom. C) When the two nucleus merge. D) When the neutrons leave the nucleus. Show Answer Correct Answer: B) When the atom shares an electron with an another atom. 8. What is the coordination number of the ionic lattice of NaCL? A) 2. B) 4. C) 6. D) 8. Show Answer Correct Answer: C) 6. 9. What is the hybridisation state of the central atom in the conjugate base of NH4+ ion? (2002-E) A) Sp. B) Sp3. C) Sp2. D) Dsp2. Show Answer Correct Answer: B) Sp3. 10. How many unshared pairs of electrons will the central atom of a bent molecule have? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: B) 2. 11. Which of the following statements about Lewis structures is true? A) They only apply to ionic compounds. B) They cannot be used for polyatomic ions. C) They show the arrangement of valence electrons. D) They represent actual shapes of molecules. Show Answer Correct Answer: C) They show the arrangement of valence electrons. 12. Which of the following is a favourable factor for cation formation? A) Low ionisation potential. B) High electron affinity. C) High electronegativity. D) Small atomic size. Show Answer Correct Answer: A) Low ionisation potential. 13. Which type of bond is formed by the sharing of a pair of electrons between atoms? A) Hydrogen Bond. B) Metallic Bond. C) Covalent Bond. D) Ionic Bond. Show Answer Correct Answer: C) Covalent Bond. 14. The geometry of a molecule with 2 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: E) Linear. 15. When atoms share electrons, the electrical attraction of an atom for the shared electrons is called the atom's A) Electron affinity. B) Electronegativity. C) Resonance. D) Hybridization. Show Answer Correct Answer: B) Electronegativity. 16. What is the bond angle in a water molecule (H-O-H)? A) 180 degrees. B) 104.5 degrees. C) 120 degrees. D) 109.5 degrees. Show Answer Correct Answer: B) 104.5 degrees. 17. Which of the following is a characteristic of ionic compounds? A) They are poor conductors of electricity in solid form. B) They have low melting points. C) They consist of orderly arrangements of cations and anions. D) They are formed from non-metallic elements only. Show Answer Correct Answer: C) They consist of orderly arrangements of cations and anions. 18. What is the bond order of the O2 molecule? A) 0. B) 2. C) 1. D) 3. Show Answer Correct Answer: B) 2. 19. Bond Angle A) The angle that is formed between adjacent bonds on the same atom. B) The atom around which other atoms bond in a molecule. C) A term used to describe the geometric structure of a molecule in which the atoms are arranged in a bent formation; this structure includes four electron pairs and two bonded atoms with a bond angle of 104.5 degrees. D) The tendency of a mineral to fracture or break when pressure is applied. Show Answer Correct Answer: A) The angle that is formed between adjacent bonds on the same atom. 20. Which of the following molecules has a pyramidal shape? A) CH4. B) NH3. C) H2O. D) CO2. Show Answer Correct Answer: B) NH3. 21. If the bond length and dipole moment of a diatomic molecule are 1.25 A and 1.0 D respectively, what is the percent ionic character of the bond? (2003-E) A) 10.66. B) 12.33. C) 16.66. D) 19.33. Show Answer Correct Answer: C) 16.66. 22. Which of the following has a full valence shell? A) Oxygen. B) Neon. C) Barium. D) Carbon. Show Answer Correct Answer: B) Neon. 23. What is the bond order in a molecule with three shared electron pairs? A) 3. B) 2. C) 1. D) 4. Show Answer Correct Answer: A) 3. 24. What is the significance of Lewis symbols in chemical bonding? A) They represent the atomic mass. B) They indicate the number of valence electrons. C) They show the molecular weight. D) They depict the electron cloud. Show Answer Correct Answer: B) They indicate the number of valence electrons. 25. What is the primary factor that determines the stability of an ionic compound? A) The type of bond formed. B) The size of the ions. C) The number of valence electrons. D) The lattice enthalpy. Show Answer Correct Answer: D) The lattice enthalpy. ← 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 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 10Class 11 Chemistry (Part I) Chapter 4 Chemical Bonding And Molecular Structure Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books