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WorksheetsAlcohols, phenols and ethers
Total questions: 22
Worksheet time: 25mins
In the hydroboration-oxidation reaction of propene with diborane, hydrogen peroxide and sodium hydroxide, what is the product formed?
Ethanol
Propan-2-ol
Propan-1-ol
tert-Butyl alcohol
2-Methylpropan-2-ol
Phenyl magnesium bromide reacts with methanol to give what?
C6H5-O-CH3 + Mg(OH)Br
C6H5-OH + Mg(CH3)Br
C6H5 + Mg(O-CH3)Br
C6H5-CH3 + Mg(OH)Br
C6H6 + Mg(O-CH3)Br
Ethanol is treated with I2 and Phosphorus to give a compound A. A is treated with Magnesium in ether to give B. B is treated with Methanal to give C. C is treated with water to give D. What is D?
Butanal
Butanol
n-butyl alcohol
n-propyl alcohol
Propanol
Among the following compounds, which ones can be dehydrated the fastest?
3-Methyl-3-pentanol
Pentan-1-ol
Pentan-2-ol
3-Methyl-1-pentanol
During the dehydration of alcohols to alkenes, what is the first step?
Formation of carbocation
Formation of ester
Protonation of carbocation
Elimination of water
Protonation of alcohol
IUPAC name of m-cresol is what?
3-methylphenol
benzene-1,3-diol
2-methylphenol
2-methoxyphenol
What is Lucas reagent?
Concentrated hydrochloric acid and anhydrous zinc chloride
Concentrated hydrochloric acid and hydrous zinc chloride
Dilute hydrochloric acid and anhydrous zinc chloride
Dilute hydrochloric acid and hydrous zinc chloride
None of these
What is Lucas test done to differentiate between?
Alcohols and phenols
Primary and secondary alcohols
Primary, secondary and tertiary alcohols
Secondary and tertiary alcohols
Alcohols and carboxylic acids
When does ethanol exhibit acidic character?
On reaction with Lucas test
On reaction with sodium chloride
On reaction with brine solution
On reaction with sodium metal
On reaction with acetic acid
What is the IUPAC name of quinol?
Benzene-1,3-diol
Catechol
Benzene-1,2-diol
Benzene-1,4-diol
Resorcinol
3 moles of ethanol react with one mole of phosphorus tribromide to form 3 moles of ethyl bromide and one mole of X. What is X?
Phosphorous acid
Phosphoric acid
Hypophosphorous acid
Metaphosphoric acid
Peroxymonophosphoric acid
In the reaction of phenol with sodium hydroxide, what does phenol behave as?
Lewis acid
Bronsted base
Arrhenius base
Bronsted acid
Lewis base
Monochlorination of toluene in sunlight followed by hydrolysis with aqueous sodium hydroxide gives what?
No reaction
Benzyl alcohol
Benzal alcohol
2,4-Dihydroxytoluene
m-Cresol
A: Phenols give o- and p-nitrophenol on nitration with concentrated HNO3+H2SO4.
R: -OH group in phenol is ortho and para directing.
Both A and R are correct and R is the correct explanation of A.
Both A and R are correct but R is not the correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Both are wrong
A: Bond angle in ethers is slightly less than the tetrahedral angle.
R: There is a repulsion between the two bulky alkyl groups.
Both A and R are correct and R is the correct explanation for A
Both A and R are correct but R is not the correct explanation for A.
A is correct but R is wrong
A is wrong but R is correct
Both are wrong
Ethers are relatively inert compounds. True or false?
False
True
Salicylic acid on reaction with zinc dust on heating gives what?
Aspirin
Salicylaldehyde
Benzoic acid
Benzene
Phenol
Which of the following compounds react with sodium hydroxide solution in water?
Phenol
Benzyl alcohol
tert-Butyl alcohol
Ethanol
What is the product obtained when phenylmethyl ether is heated with hydrogen iodide?
Benzene
Phenol
Iodobenzene
Chloroethane
Ethanol
Phenol on treatment with diethyl sulphate in the presence of sodium hydroxide gives what?
Anisole
Diphenyl ether
Diethyl ether
Phenate
Which of the following phenols has the highest pKa value?
Phenol
p-Cresol
o-Nitrophenol
o-Cresol
p-Nitrophenol
A compound X is treated with sodium metal to give Y and with PCl5 to give Z. Y and Z react together to give diethyl ether. What are the compounds X,Y and Z?
X: Ethanol, Y: Sodium ethoxide, Z: Chloroethene
X: Chloroethane, Y: Ethanol, Z: Sodium ethanoate
X: Ethanol, Y: Sodium ethoxide, Z: Chloroethane
X: Ethanol, Y: Sodium methanoate, Z: Chloroethane
X: Ethanol, Y: Sodium methoxide, Z: Chloroethane
