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Class 12 Chemistry
Alcohols, Phenols And Ethers
Quiz 2
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The major product of acid catalysed dehydration of 2-methylcyclohexanol and butan-1-ol are respectively
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1 -methylcyclohexene andbut-1-ene
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2-methylcyclohexene and but-2-ene
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2-methylcyclohexene and butane
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1-methylcyclohexene and but-2-ene
Explanation
1 -methylcyclohexene andbut-1-ene
Tertiary butyl alcohol gives tertiary butyl chlorideon treatment with
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Conc HCl/anhydrous ZnCl
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KCN
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NaOCl
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Cl
Explanation
Conc HCl/anhydrous ZnCl
Conversion of phenol to salicyclic acid and to salicyaldehyde are known as (respectively)
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Reimer-Tiemann reaction and Kolbe’s reaction
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Williamson’s synthesis and Hydrobration-oxidation
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Kolbe’s reaction and Williamson’s synthesis
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Kolbe’s reaction and Reimer-Tiemann reaction
Explanation
Kolbe’s reaction and Reimer-Tiemann reaction
The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is
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benzoic acid
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salicyaldehyde
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salicylic acid
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phthalic acid
Explanation
salicylic acid
An unknown alcohol is treated with “Lucas reagent” to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism?
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Tertiary alcohol by S
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Secondary alcohol by S
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(i) and (ii)
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None of the above
Explanation
Tertiary alcohol by S
0 h : 0 m : 1 s
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