Question:
Which of the following compounds contains two primary alcoholic and one secondary alcoholic groups? ________.
Which of the following compounds contains two primary alcoholic and one secondary alcoholic groups? ________.
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Primary carbon: Attached to 1 other carbon. Secondary carbon: Attached to 2 others.
Updated On: Jun 26, 2026
- Ethylene glycol
- Isopropyl alcohol
- 3$^{\circ}$ Butyl alcohol
- Glycerol
- 2$^{\circ}$ Butyl alcohol
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Identify the structure of each alcohol and categorize the -OH groups based on the carbon they are attached to.
Step 2: Meaning
Glycerol (Propane-1,2,3-triol) structure is $CH_2(OH)-CH(OH)-CH_2(OH)$.
Step 3: Analysis
The two end carbons are primary ($1^\circ$), and the middle carbon is secondary ($2^\circ$).
Step 4: Conclusion
Glycerol contains exactly two primary and one secondary alcoholic groups. Final Answer: (D)
Identify the structure of each alcohol and categorize the -OH groups based on the carbon they are attached to.
Step 2: Meaning
Glycerol (Propane-1,2,3-triol) structure is $CH_2(OH)-CH(OH)-CH_2(OH)$.
Step 3: Analysis
The two end carbons are primary ($1^\circ$), and the middle carbon is secondary ($2^\circ$).
Step 4: Conclusion
Glycerol contains exactly two primary and one secondary alcoholic groups. Final Answer: (D)
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