Given below are two statements: Statement I: SO2 and H2O both possess V-shaped structure. Statement II: The bond angle…
Chemical Bonding · Class 11 · JEE Main Previous Year Question
Given below are two statements:
Statement I: and both possess V-shaped structure.
Statement II: The bond angle of is less than that of .
Choose the most appropriate answer:
- a
Both Statement I and Statement II are incorrect
- b
Both Statement I and Statement II are correct
- c
Statement I is incorrect but Statement II is correct
- d✓
Statement I is correct but Statement II is incorrect
Statement I is correct but Statement II is incorrect
🧠 Evaluate each statement independently using VSEPR and known bond angles.
Statement I — shape: : S has 2 bonds + 1 lone pair → V-shaped ✓. : O has 2 bonds + 2 lone pairs → V-shaped ✓. Both are V-shaped → Statement I is correct.
Statement II — bond angle comparison: bond angle ≈ 119°; bond angle ≈ 104.5°. Statement II says angle is less than angle — this is wrong ().
🗺️ Why is 's angle larger? In , the lone pair on S occupies a more contracted orbital (S is period 3, lone pair less repulsive) and the S=O double-bond character pushes the bonding pairs outward. In , two lone pairs exert maximum repulsion on the bond pairs, compressing the H–O–H angle to 104.5°.
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