Question detail
Which reagent is commonly used to facilitate the elimination of water from alcohols?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Alcohols
Question
- A. Sodium hydroxide
- B. Concentrated sulfuric acid
- C. Potassium permanganate
- D. Sodium bicarbonate
Answer
Concentrated sulfuric acid
Explanation
Concentrated sulfuric acid is commonly used as a dehydrating agent to facilitate the elimination of water from alcohols, promoting the formation of alkenes through this reaction.
Common mistake
Water Elimination Confusion
Students often confuse the elimination of water from alcohols with the addition of water to form alcohols, leading to incorrect equations.
To correctly explain the elimination of water from alcohols to form alkenes, use the formula for dehydration: CnH2n+1OH → CnH2n + H2O. Substitute the specific alcohol structure into the equation, show the removal of water, and conclude that an alkene is formed.
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