Chemical Bonding and Molecular Structure — Class 11 Chemistry NCERT Solutions (Free)
Free step-by-step NCERT solutions for Class 11 Chemistry chapter "Chemical Bonding and Molecular Structure" — 5 important questions with detailed answers for CBSE board exam preparation.
TL;DR: Free step-by-step NCERT solutions for Class 11 Chemistry chapter "Chemical Bonding and Molecular Structure" — 5 important questions with detailed answ…
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Key Questions Covered:
- What is a covalent bond? Explain the difference between nonpolar and polar co…
- Explain Lewis dot structure. Draw the Lewis dot structure of CO₂ (carbon diox…
- What is the octet rule? Explain exceptions to the octet rule with examples.
- + 2 more questions in the full chapter
Solutions Summary:
| Question | Status |
|---|---|
| What is a covalent bond? Explain the difference between n… | ✓ Solved |
| Explain Lewis dot structure. Draw the Lewis dot structure… | ✓ Solved |
| What is the octet rule? Explain exceptions to the octet r… | ✓ Solved |
Showing 3 of 5 questions
Q1: What is a covalent bond? Explain the difference between nonpolar and polar covalent bonds with examples.
Covalent Bond Definition:
A covalent bond is a chemical bond formed by the sharing of electrons between two atoms.
In a covalent bond:
→ Valence electrons of atoms are shared in pairs
→ Both atoms are attracted to the shared electron pair
→ Forms between nonmetallic elements (and sometimes metals)
...
Q2: Explain Lewis dot structure. Draw the Lewis dot structure of CO₂ (carbon dioxide).
Lewis Dot Structure Definition:
A Lewis dot structure (Lewis structure or electron dot structure) is a representation of a molecule showing:
→ All valence electrons of the atoms
→ The arrangement of atoms in the molecule
→ Covalent bonds as lines or pairs of dots
→ Lone pairs of electrons as pairs o...
Q3: What is the octet rule? Explain exceptions to the octet rule with examples.
Octet Rule Definition:
The octet rule states that atoms tend to gain, lose, or share electrons to achieve a stable electron configuration with 8 valence electrons (like noble gases).
For hydrogen, the duet rule applies: H tends to achieve 2 electrons (like He).
Explanation:
→ Noble gases (He, Ne, ...
Showing 3 of 5 questions. Visit the full page for complete solutions.