JEE Questions for Chemistry Alcohols Phenols And Ethers Quiz 2 - MCQExams.com

An organic acid without a carboxylic acid group is
  • picric acid
  • oxalic acid
  • vinegar
  • ascorbic acid
The order of melting point of ortho, para, meta nitrophenol is
  • o > m > p
  • p > m > o
  • m > p > o
  • p > o > m
Acidity of phenol is due to
  • hydrogen bonding
  • phenolic group
  • benzene ring
  • resonance stabilisation of its anion
Phenol on treatement with diethyl sulphate in presence of NaOH gives
  • phenetole
  • anisole
  • diphenyl ether
  • diethyl ehter
Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives
  • 2, 4, 6-trinitrobenzene
  • o-nitrophenol
  • p-nitrophenol
  • nitrobenzene
Among the following, which is least acidic ?
  • phenol
  • o-cresol
  • p-nitrophenol
  • p-chlorophenol
Picric acid is a stronger acid than acetic acid and benzoic acid. It contains
  • —SO3H group
  • two —COOH groups
  • phenolic group
  • three—COOH groups
Which of the following compound would not evolve CO2 when treated with NaHCO3 solution ?
  • Salicylic acid
  • Phenol
  • Benzoic acid
  • 4-nitrobenzoic acid
By heating phenol with chloroform in alkali, it is converted into
  • salicylic acid
  • salicylaldehyde
  • anisole
  • phenyl benzoate
C2H5OH and C6H5OH can be distinguished by
  • Br2 + H2O
  • FeCl3
  • I2 + NaOH
  • Both (and (3)
On reacting with neutral ferric chloride, phenol gives
  • red colour
  • blue colour
  • violet colour
  • green colour
Carbolic acid is
  • HCOOH
  • CH3COOH
  • C6H5COOH
  • C6H5OH
When benzene sulphonic acid and p-nitrophenol are treated with NaHCO3 , the gases released respectively are
  • SO2 , NO2
  • SO2 , NO
  • SO2 , CO2
  • CO2
Phenol on reaction with CHCl3 and NaOH give benzaldehyde. Intermediate of this reaction is
  • carbocation
  • carbanion
  • radical
  • carbene
What amount of bromine will be required to convert 2 g of phenol into 2, 4, 6-tribromo phenol?
  • 4.00
  • 6.00
  • 10.22
  • 20.44
Picric acid is
  • 2, 4, 6-tribromophenol
  • sym-trinitrophenol
  • trinitrophenol
  • 2,4,6-trinitrotoluence
Cumene process is the most important commercial method for the manufacture of phenol. Cumene is
  • 1-methyl ethyl benzene
  • ethyl benzene
  • vinyl benzene
  • propyl benzene
Phenol gives characteristic colouration with
  • iodine solution
  • bromine water
  • aqueous FeCl3 solution
  • ammonium hydroxide
Which is obtained on treating phenol, with dilute HNO3 ?

  • Chemistry-Alcohols Phenols and Ethers-16.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-17.png

  • Chemistry-Alcohols Phenols and Ethers-18.png
  • None of these
To distinguish between salicylic acid and phenol one can use
  • NaHCO3 solution
  • 5% NaOH solution
  • neutral FeCl3
  • bromine water
When phenyl magnesium bromide reacts with t-butanol, the product would be
  • benzene
  • phenol
  • t-butyl benzene
  • t-butyl phenyl ether
Strength of acidity is in order
Chemistry-Alcohols Phenols and Ethers-19.png
  • II > I > III > IV
  • III > IV > I > II
  • I > IV > III > II
  • IV > III > I > II
When CH2 =CH—O—CH2 —CH3 reacts with one mole of HI, one of the products formed is
  • ethane
  • ethanol
  • iodoethene
  • ethanal
A simple method to remove peroxides from ethers is to treat them with an aqueous solution of
  • Br2
  • KI
  • KCNS
  • Na2S2O3
Which one of the following compounds will not react with CH3MgBr?
  • Ethyl acetate
  • Acetone
  • Dimethyl ether
  • Ethanol
What is the hybridisation of carbon and oxygen in electronic structure of ether?
  • sp3 and sp2
  • sp3 and sp3
  • sp and sp
  • sp2 and sp2
If the boiling point of ethanol (molecular weight =is 78°C, what is the boiling point of diethyl ether ? (molecular weight =
  • 100°C
  • 78°C
  • 86°C
  • 34°C
Anisole is the product obtained from phenol by the reaction known as
  • coupling
  • etherification
  • oxidation
  • esterification
Tert-butyl methyl ether on heating with anhydrous HI in ether gives
  • CH3OH + (CH3)3Cl
  • CH3I + (CH3)3 COH
  • CH3I + (CH3)3 Cl
  • None of the above
The products obtained when benzyl phenyl ether is heated with HI in the mole ratio 1 : 1 are
I. phenol
II. benzyl alcohol
III. benzyl iodide
IV. iodobenzene
  • I and III
  • III and IV
  • I and IV
  • II and IV
  • II and III
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