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NEET CHEMISTRYChemical Bonding and Molecular StructureMedium

Question

Which of the following species has a linear shape?

A

NO2−\text{NO}_2^-

B

SO2\text{SO}_2

C

NO2+\text{NO}_2^+

D

O3\text{O}_3

Step-by-Step Solution

The shape of a molecule or ion can be determined using VSEPR theory and hybridization:

  1. NO2−\text{NO}_2^-: The central nitrogen atom is sp2sp^2 hybridized and possesses one lone pair of electrons, resulting in a bent or V-shape.
  2. SO2\text{SO}_2: The central sulphur atom is sp2sp^2 hybridized and has one lone pair of electrons, giving it a bent shape.
  3. NO2+\text{NO}_2^+: The central nitrogen atom is bonded to two oxygen atoms via double bonds and has zero lone pairs. It undergoes spsp hybridization, resulting in a perfectly linear shape with a bond angle of 180∘180^\circ.
  4. O3\text{O}_3: The central oxygen atom in ozone is sp2sp^2 hybridized and contains one lone pair, which also leads to a bent shape.

Exam Context & Concepts Covered

This question aligns with the NEET CHEMISTRY syllabus, specifically targeting concepts from Chemical Bonding and Molecular Structure. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

CHEMISTRYChemical Bonding and Molecular Structurefollowingspecieslinear

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