WorksheetsAlcohol and Phenol
Total questions: 20
Worksheet time: 41mins
Benzene diazonium chloride on reaction with phenol in weakly basic medium gives
diphenyl ether
p-hydroxyazobenzene
Chlorobenzene
Benzene
Benzene diazonium chloride on reaction with phenol in weakly basic medium gives azo dye (p-hydroxy azobenzene) is called:
Dows Reaction.
Coupling Reaction
Diazotisation reaction
Sandmeyer Reaction
Phenol reacts with bromine in CS2 at low temperature to give
m-bromophenol
o-and p-bromophenol
p-bromophenol
2,4,6-tribromophenol
When phenol is treated with excess bromine water it gives
m-bromophenol
o- and p-bromophenol
2,4-dibromophenol
2,4,6-tribromophenol
Dehydration of alcohol is an example of
addition reaction
elimination reaction
substitution reaction
redox reaction
Phenol is less acidic than
Methanol
p-methoxyphenol
p-nitrophenol
Ethanol
Monochlorination of toluene in sunlight followed by hydrolysis with aq. NaOH yields__________
o-Cresol
p-Cresol
2, 4-Dihydroxytoluene
Benzyl alcohol
The process of converting alkyl halides into alcohols involves_____________
addition reaction
substitution reaction
dehydrohalogenation reaction
rearrangement reaction
Which of the following name reactions produces salicyldehyde?
Kolbe's reaction
Rosenmund reduction
Williamson's synthesis
Reimer Tiemann reaction
Choose the correct order of acidic strength.
o-nitrophenol < o-cresol < phenol
o-cresol < o-nitrophenol< phenol
o-cresol < phenol < o-nitrophenol
o-nitrophenol< phenolo < cresol
The order of ease of dehydration of primary,secondary and tertiary alcohols is_______________
30 < 20 < 10
20 < 10 < 30
30 > 20 > 10
20 < 30 < 10
Which of the following set of reactants is appropriate for the preparation of t-butyl ethyl ether?
t-butyl chloride and Sodium ethoxide.
Sodium tertiary butoxide and Ethyl chloride
Ethyl chloride and Butyl alcohol
Butyl chloride and Ethyl alcohol
Phenols are more acidic than alcohols because
Phenoxide ion is stablised by resonance
Phenols are more soluble in polar solvents
Phenoxide ion does not exhibit resonance
Alcohols do not lose H atoms at all
Why alcohols have higher boiling point than alkanes?
Alcohols have Van der Waal's forces between the molecules
Alcohols have intermolecular Hydrogern bonding
Alcohols exist as dimers.
Alcohols have intramolecular Hydrogen bonding.
When phenol is treated with CHCl3 and NaOH the product formed is
benzaldehyde
salicylaldehyde
benzoic acid
salicylic acid
Williamson's synthesis gives best results when sodium alkoxide reacts with___________
Primary alkyl halides
Tertiary alkyl halide
Primary alcohol
Tertiary alcohol
Phenol is obtained by heating aqueous solution of which of the following?
Aniline
Benzene diazonium chloride
Benzoic acid
Benzyl alcohol
Arrange the compounds in the decreasing order of acidic character
A
B
C
D
Phenols produce 2,4,6-trinitro phenol using following reagents
Dil HNO3
Con HNO3
Con HNO3 + Con H2SO4
Con H2SO4
The correct acidic strength of the following
A
B
C
D
