Class 11 Exam > Class 11 Notes > MCQ: Chemical Bonding and Molecular Structure
MCQ: Chemical Bonding and Molecular Structure - Class 11 PDF Download
Direction (Q. Nos. 19 and 20) This section contains 2 questions. when worked out will result in an integer from 0 to 9 (both inclusive)Q. Bond order of 1.5 is shown bya)O22-b)O2c)O2+d)O2-Correct answer is option 'D'. Can you explain this answer?
Ref: https://edurev.in/question/534824/Direction-Q-Nos-19and-20-This-section-contains-2questions-when-worked-out-will-result-in-an-int
FAQs on MCQ: Chemical Bonding and Molecular Structure - Class 11
| 1. What is chemical bonding? |  |
Ans. Chemical bonding refers to the forces that hold atoms together to form molecules or compounds. It involves the sharing, transferring, or rearranging of electrons between atoms to achieve a more stable electronic configuration.
| 2. What are the types of chemical bonds? | |
Ans. There are three types of chemical bonds: Ionic bonds, covalent bonds, and metallic bonds. Ionic bonds involve the transfer of electrons between atoms, covalent bonds involve the sharing of electrons, and metallic bonds involve a sea of delocalized electrons surrounding a lattice of positive ions.
| 3. How do ionic bonds form? | |
Ans. Ionic bonds form when there is a large difference in electronegativity between two atoms. One atom, with a high electronegativity, gains electrons to become a negatively charged ion (anion), while the other atom, with a low electronegativity, loses electrons to become a positively charged ion (cation). These oppositely charged ions are then attracted to each other, forming an ionic bond.
| 4. What is a Lewis structure? | |
Ans. A Lewis structure is a representation of a molecule or ion that shows the arrangement of atoms and valence electrons. It uses dots to represent valence electrons and lines to represent covalent bonds. Lewis structures help in understanding the bonding and molecular structure of a compound.
| 5. How do you determine the polarity of a molecule? | |
Ans. The polarity of a molecule depends on the electronegativity difference between the atoms and the molecular geometry. If the electronegativity difference is significant and the molecule has an asymmetrical shape, it is likely to be polar. On the other hand, if the electronegativity difference is small and/or the molecule has a symmetrical shape, it is likely to be nonpolar. The presence of lone pairs of electrons on the central atom can also affect the molecular polarity.
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Sep 26, 2025
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