Alcohols undergo acid catalysed elimination reactions to produce alkenes. Because water is lost in the elimination , this reaction is called dehydration reaction. Secondary and tertiary alcohols always give E1 reaction in dehydration. Primary alcohols whose β -carbon is branched also give E1 reaction. The reactivity of alcohol for elimination reaction is tertiary alcohol > Secondary alcohol > Primary alcohol.
(i) Which of the following dehydration product (major) is incorrect ?
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(i) Most stable alkene (saytzeff alkene) is major product.
⎯⎯→ 
⎯→ 
(ii) In this reaction pinacol pinacolone rearrangement takes place
⎯⎯→ 
⎯⎯→ 
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