AIIMS 2019 Physics Ray Diagrams MCQ Question

Option A is correct because it accurately represents the molecular structure of water (H₂O), which consists of two hydrogen atoms covalently bonded to one oxygen atom, forming a bent geometry due to the presence of lone pairs on the oxygen. In contrast, options B, C, and D depict incorrect molecular configurations or bond angles that do not align with the known properties of water, such as its tetrahedral electron geometry and the resulting bond angle of approximately 104.5°. Understanding the molecular geometry of H₂O is crucial for grasping its unique properties, such as its polarity and ability to form hydrogen bonds, which are essential for life.