Chemistry : Alcohols, Phenols and Ethers

Toluene on treatment with CrO₃ and (CH₃CO)₂O followed by hydrolysis with dil HCl gives

• benzaldehyde

• benzoic acid

• phenol

• phenylacetaldehyde

Diacidic base is

• CH₂(OH)₂

• Ca(OH)₂

• CH₃CH(OH)₂

• All of these

Phenol on treatment with diethyl sulphate in presence of NaOH give

• phenetole

• anisole

• diphenyl ether

• diethyl ether

The step which never be involved in the dehydration of alcohol is

• protonation

• elimination

• hydride transfer

• carbanion formation

The boiling point of ethanol is higher as compared to the boiling point of diethyl ether though both have the same molecular formula. This is due to

• resonance

• -R group

• H-bonding

• covalent bonding

Which one of the following compounds will not react with CH₃MgBr ?

• Ethyl acetate

• Acetone

• Dimethyl ether 

• Ethanol

Dehydration of alcohol usually goes by

• E1 mechanism

• E2 mechanism

• E1 cb mechanism

• S_N2 mechanism

Phenol reacts with dilute nitric acid at normal temperature to form

• o-nitrophenol

• m-nitrophenol

• o-and p-nitropheno

• 2, 4, 6-trinitrophenol

Which of the following compounds does not give Friedel-Craft's reaction ?

• benzene

• xylene

• nitrobenzene

• phenol

Which one is the correct IUPAC name of the following compound?

• 1-chloro-5-hydroxycydohexane

• 2-chloro-4-hydroxycyclohexane

• 3-chloro-3-cyclohexenol

• 5-hydroxycydohexenyl chloride