Q1. [1] straightforward initial-understanding
Which of the following pairs correctly distinguishes saturated from unsaturated carbon compounds?
(A) Saturated compounds contain only carbon and hydrogen; unsaturated compounds contain other elements too.
(B) Saturated compounds have only single bonds between carbon atoms; unsaturated compounds have one or more double or triple bonds between carbon atoms.
(C) Saturated compounds are more reactive than unsaturated compounds.
(D) Saturated compounds always have a ring structure; unsaturated compounds always have a chain structure.
- A Saturated compounds contain only carbon and hydrogen; unsaturated compounds contain other elements too.
- B Saturated compounds have only single bonds between carbon atoms; unsaturated compounds have one or more double or triple bonds between carbon atoms.
- C Saturated compounds are more reactive than unsaturated compounds.
- D Saturated compounds always have a ring structure; unsaturated compounds always have a chain structure.
Generated by claude-sonnet-4-6 · 2026-06-26 01:05 · grounding rag
Model Answer
(B) Saturated compounds have only single bonds between carbon atoms; unsaturated compounds have one or more double or triple bonds between carbon atoms.
Explanation
The textbook (section 4.2) explicitly states: "Compounds of carbon linked by only single bonds between carbon atoms are called saturated compounds. Compounds having double or triple bonds are called unsaturated compounds." Options A, C, and D are factually incorrect — both types can contain other elements; unsaturated compounds are actually more reactive; and both types can have ring or chain structures (e.g., cyclohexane is saturated and cyclic; benzene is unsaturated and cyclic).