Chemical Bonding and Molecular Structure — Important Questions
CBSE · Class 11 · Chemistry
67 important questions from Chemical Bonding and Molecular Structure for CBSE Class 11 Chemistry, with answers.
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Important Questions from Chemical Bonding and Molecular Structure
What is a sigma (σ) bond?
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A bond formed by end-to-end orbital overlap
A sigma bond is formed by the head-on or end-to-end overlap of atomic orbitals along the internuclear axis.
What determines the polarity of a chemical bond?
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Electronegativity difference between atoms
The polarity of a bond depends on the difference in electronegativity between the bonded atoms. Greater difference leads to more polar bonds.
What is a hydrogen bond?
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An electrostatic attraction between hydrogen and a highly electronegative atom
A hydrogen bond is a weak electrostatic attraction between a hydrogen atom bonded to a highly electronegative atom and another electronegative atom.
What is the bond order in a molecule?
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Half the difference between bonding and antibonding electrons
Bond order is calculated as 1/2 (number of bonding electrons - number of antibonding electrons), indicating bond strength.
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- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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