Question
Identify the molecule (X) with maximum number of lone pairs of electrons (obtained using Lewis dot structure) among HNO _ 3 , H _ 2 SO _ 4 , NF _ 3 and O _ 3 . Choose the correct bond angle made by the central atom of the molecule ( X ).
JEE Main
Chemistry
Chemical Bonding and Molecular Structure
2026
JEE Main 2026 (23 January Shift 1)
JEE Main Chemistry Question (2026) — Solution
Options
- A. 116^
- B. 102^
- C. 107^
- D. 120^
Answer
B. 102^
Step-by-step solution
Analyzing lone pairs on central atoms: HNO₃: N is central with 3 bonds and 0 lone pairs H₂SO₄: S is central with 4 bonds and 0 lone pairs NF₃: N is central with 3 bonds and 1 lone pair O₃: Central O with 2 bonding regions and 1 lone pair NF₃ has maximum lone pairs (1) with the clearest structure. N undergoes sp³ hybridization with 1 lone pair and 3 bonding pairs giving trigonal pyramidal geometry. The F-N-F bond angle is reduced from ideal tetrahedral 109.5° due to lone pair repulsion, resulting in approximately 102°.
Related: Chemistry — Chemical Bonding and Molecular Structure · All PYQ Banks