Chemical Bonding Quiz for JEE Main 2026 | NEET JEE Rankers

Chemical Bonding – JEE Main 2026 Quiz

10 Questions | MCQ + Numerical | Instant Score After Submit

Q1. Sum of bond order of CO and NO⁺ is:
Correct Answer: 6
Q2. Aluminium chloride in acidified aqueous solution forms an ion having geometry:
Correct Answer: Octahedral
Q3. The difference in energy between the actual structure and the lowest energy resonance structure is called:
Correct Answer: Resonance energy
Q4. In which pair the central atom shows sp² hybridization?
Correct Answer: BF₃ and NO₂⁻
Q5. Number of species having pyramidal geometry among S₂O₃²⁻, SO₄²⁻, SO₃²⁻ and S₂O₇²⁻ is:
Correct Answer: 1
Q6. Number of molecules having bond order 2 among C₂, O₂, Be₂, Li₂, Ne₂, N₂ and He₂ is:
Correct Answer: 2
Q7. Hybridization of molecule having non-zero dipole moment and maximum lone pairs among SO₂, NF₃, NH₃, XeF₂, ClF₃ and SF₄ is:
Correct Answer: sp³d
Q8. Increasing order of dipole moment of HBr, H₂S, NF₃ and CHCl₃ is:
Correct Answer: NF₃ < HBr < H₂S < CHCl₃
Q9. Total number of valence electrons around nitrogen in NO₂⁻ is:
Correct Answer: 8
Q10. Hybridizations at the central atom in SO₂, NO₂⁻ and N₃⁻ respectively are:
Correct Answer: sp², sp² and sp

Chemical Bonding – JEE Main 2026 Theory

Chemical bonding explains how atoms combine to form molecules and compounds. For JEE Main 2026, this chapter is extremely important because questions are frequently asked from hybridization, VSEPR theory, molecular orbital theory and bond parameters.

According to VSEPR theory, the geometry of a molecule depends on the number of bond pairs and lone pairs around the central atom. Lone pairs exert greater repulsion than bond pairs, causing distortion in geometry. This concept is heavily tested in JEE Main.

Hybridization is the mixing of atomic orbitals to form equivalent hybrid orbitals. Common hybridizations include sp, sp², sp³, sp³d and sp³d². Determining hybridization helps predict molecular shape and bond angles.

Molecular Orbital Theory (MOT) explains bond order, magnetic properties and stability of molecules. Bond order is calculated as half the difference between bonding and antibonding electrons. Higher bond order indicates stronger and more stable bonds.

Resonance occurs when multiple Lewis structures can be drawn for a molecule. The actual structure is a resonance hybrid and is more stable than any individual structure. The stability gained is called resonance energy.

Dipole moment depends on electronegativity difference and molecular geometry. Even polar bonds can result in zero dipole moment if the molecule is symmetrical.

Chemical bonding is one of the highest scoring chapters in JEE Main 2026 if concepts are clear and enough PYQs are practiced.

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