JEE Questions for Chemistry Alcohols Phenols And Ethers Quiz 5 - MCQExams.com

Identify the correct product formed during the following reaction
Chemistry-Alcohols Phenols and Ethers-82.png

  • Chemistry-Alcohols Phenols and Ethers-83.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-84.png

  • Chemistry-Alcohols Phenols and Ethers-85.png

  • Chemistry-Alcohols Phenols and Ethers-86.png
What represents the best method producing salicylic acid?
  • Benzoic acid, strong base, high temperature
  • Toluene, strong base, water, high temperature
  • Phenol, base, carbon dioxide then acid
  • Bromobenzene, carbonic acid, high temperature

Chemistry-Alcohols Phenols and Ethers-89.png

  • Chemistry-Alcohols Phenols and Ethers-90.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-91.png

  • Chemistry-Alcohols Phenols and Ethers-92.png

  • Chemistry-Alcohols Phenols and Ethers-93.png
When phenol is treated with D2 SO4 / D2O, some of the hydrogens get exchanged. The final product in this exchange reaction is

  • Chemistry-Alcohols Phenols and Ethers-95.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-96.png

  • Chemistry-Alcohols Phenols and Ethers-97.png

  • Chemistry-Alcohols Phenols and Ethers-98.png

Chemistry-Alcohols Phenols and Ethers-100.png

  • Chemistry-Alcohols Phenols and Ethers-101.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-102.png

  • Chemistry-Alcohols Phenols and Ethers-103.png

  • Chemistry-Alcohols Phenols and Ethers-104.png
In the following reaction, the product(s) formed is (are)
Chemistry-Alcohols Phenols and Ethers-106.png
  • P (major)
  • Q (minor)
  • R (minor)
  • S (major)
  • Both (and (4)
Reimer-Tiemann reaction involves
  • carbonium ion intermediate
  • carbene intermediate
  • carbanion intermediate
  • free radical intermediate

Chemistry-Alcohols Phenols and Ethers-109.png
  • Phenol, acetone
  • Phenol, acetaldehyde
  • Benzoic acid, acetone
  • Benzaldehyde, ethanol
The reaction of phenol with excess of bromine water gives
  • m-bromophenol
  • o-and p-bromophenol
  • 2, 4-dibromophenol
  • 2, 4, 6-tribromophenol
Phenol is heated with a solution of mixture of KBr and KBrO3 .The major product obtained in the above reaction is
  • 2-bromophenol
  • 3-bromophenol
  • 4-bromophenol
  • 2, 4, 6-tribromophenol
Which of the following reagents may be used to distinguish between phenol and benzoic acid?
  • Aqueous NaOH
  • Tollen's reagent
  • Molisch reagent
  • Neutral FeCl3
The correct order of acid strength of the following compounds is
I. Phenol
II. p-cresol
III. m-nitrophenol
IV. p-nitrophenol
  • III > II > I > IV
  • IV > III > I > II
  • II > IV > I > III
  • I > II > IV > III
The conversion of m-nitrophenol to resorcinol involves respectively
  • hydrolysis, diazotisation and reduction
  • diazotisation, reduction and hydrolysis
  • hydrolysis, reduction and diazotisation
  • reduction, diazotisation and hydrolysis
Phenol can be converted to o-hydroxy benzaldehyde by
  • Kolbe's reaction
  • Reimer-Tiemann reaction
  • Wurtz reaction
  • Cannizaro reaction
  • Sandmeyer's reaction
The correct order of decreasing acidity of nitrophenols will be
  • m-nitrophenol > p-nitrophenol > o-nitrophenol
  • o-nitrophenol > m-nitrophenol > p-nitrophenol
  • p-nitrophenol > m-nitrophenol > o-nitrophenol
  • p-nitrophenol > o-nitrophenol > m-nitrophenol

Chemistry-Alcohols Phenols and Ethers-114.png
  • Fries rearrangement and Kolbe-Schmidt
  • Cumene and Reimer-Tiemann
  • Dow and Reimer-Tiemann
  • Dow and Friedel-Craft
When phenol is treated with excess of bromine water, it gives
  • m-bromophenol
  • o-and p-bromophenol
  • 2, 4-dibromophenol
  • 2,4,6-tribromophenol

Chemistry-Alcohols Phenols and Ethers-115.png
  • o-bromophenol
  • p-bromophenol
  • m-bromophenol
  • 2, 4, 6-tribromophenol

Chemistry-Alcohols Phenols and Ethers-116.png
  • bromine in benzene
  • bromine in water
  • potassium bromide solution
  • bromine in carbon tetrachloride at 0°C
The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is
  • benzoic acid
  • salicylaldehyde
  • salicylic acid
  • phthalic acid
In the reaction for dinitration
Chemistry-Alcohols Phenols and Ethers-118.png

  • Chemistry-Alcohols Phenols and Ethers-119.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-120.png

  • Chemistry-Alcohols Phenols and Ethers-121.png

  • Chemistry-Alcohols Phenols and Ethers-122.png
Salicyl aldehyde is obtained when phenol is heated with CHCl3 and aqueous NaOH. This reaction is known by which name?
  • Carbyl amine reaction
  • Hofmann's reaction
  • Reimer-Tiemann reaction
  • Kolbe-Schmidt reaction
Correct acidic order of the following compounds is
Chemistry-Alcohols Phenols and Ethers-123.png
  • I > II > III
  • III > I > II
  • II > III > I
  • I > III > II
When o- or p-phenol sulphonic acid is treated with bromine water, the product formed is
  • 2, 4-dibromophenol
  • 2, 4, 6-tribromophenol
  • 3-bromophenol boric acid
  • None of these
Phenol on heating with CCl4 and aqueous KOH gives salicylic acid. This reaction is
  • Friedel-Craft reaction
  • Diels-Alder reaction
  • Reimer-Tiemann reaction
  • Wittig reaction
Benzoylation of phenol in alkaline medium is known as
  • Friedel-Crafts reaction
  • Wurtz-Fittig reaction
  • Schotten-Baumann reaction
  • Sabatier Senderens reduction
The following reaction is known as
Chemistry-Alcohols Phenols and Ethers-124.png
  • Perkin reaction
  • Gattermann reaction
  • Kolbe reaction
  • Gattermann-aldehyde reaction
Phenol is more acidic than alcohol because
  • phenol is more soluble in polar solvents
  • alcohol does not lose hydrogen atom
  • phenoxide ion is stabilised by resonance
  • phenoxide ion doesn't exhibit resonance
The structure of the compound that gives a tribromo derivative on treatment with bromine water is

  • Chemistry-Alcohols Phenols and Ethers-126.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-127.png

  • Chemistry-Alcohols Phenols and Ethers-128.png

  • Chemistry-Alcohols Phenols and Ethers-129.png
Phenol can be distinguished from ethanol by the following reagents except
  • sodium
  • NaOH/I2
  • neutral FeCl3
  • Br2 /H2O
  • phthalic anhydride/conc. H2SO4 and NaOH
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