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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward initial-understanding
Two compounds both have the molecular formula C₄H₁₀ but have different structures. What are such compounds called? Draw or describe the structures of both compounds to show how they differ.
Generated by claude-sonnet-4-6 · 2026-06-26 01:06 · grounding rag
Model Answer

Such compounds are called structural isomers. Butane has a straight chain (C–C–C–C) and isobutane has a branched chain (central C bonded to three other C atoms); both share formula C₄H₁₀.

Explanation

The question is worth only 1 mark, so name the term and briefly distinguish the two structures. Examiner looks for: (1) the term structural isomers and (2) a clear indication that one structure is straight-chain and the other is branched. No detailed diagram is needed for 1 mark — a brief description suffices.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.