JEE Questions for Chemistry Alcohols Phenols And Ethers Quiz 3 - MCQExams.com

Which of the following does not react with sodium metal ?
  • (CH3)2O
  • CH3CH2OH
  • CH3COOH
  • C6H5OH
Williamson's synthesis is used for the preparation of
  • acid
  • ester
  • ether
  • alcohol
Formation of diethyl ether from ethanol is based on a
  • dehydration reaction
  • dehydrogenation reaction
  • hydrogenation reaction
  • homolytic fission reaction
The product obtained by heating diethyl ether with HI is
  • C2H5 I
  • C2H5 OH
  • C2H5OH + C2H5I
  • C2H5 — C2H5
Methyl phenyl ether can be obtained by reacting
  • phenolate ions and methyl iodide
  • methoxide ions and bromobenzene
  • methanol and phenol
  • bromobenzene and methyl bromide
In which of the following reactions the product is an ether ?
  • C6H6 + CH3 COCl/ anhydrous AlCl3
  • C2H5Cl aq. KOH
  • C6H6 + C6H5COCl/ anhydrous AlCl3
  • C2H5Cl+ C2H5ONa
Ethanol is CH3 CH2 OH. Which species is formed when ethanol acts as a Bronsted base?
  • CH3 CH2 O-
  • CH3C+ H2
  • CH3 CH2 O+ H2
  • H3O+
Among the alkenes which one produces tertiary butyl alcohol on acid hydration?
  • CH3 CH2 CH=CH2
  • CH3 CH=CH—CH3
  • (CH3 )2 C=CH2
  • CH3 —CH=CH2

Chemistry-Alcohols Phenols and Ethers-25.png

  • Chemistry-Alcohols Phenols and Ethers-26.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-27.png

  • Chemistry-Alcohols Phenols and Ethers-28.png

  • Chemistry-Alcohols Phenols and Ethers-29.png
Hydroboration oxidation of 4-methyl octene-1 would give
  • 4-methyl octanol
  • 2-methyl decane
  • 4-methyl heptanol
  • 4-methyl-2-octanone
For the sequence of reactions,
Chemistry-Alcohols Phenols and Ethers-31.png
  • 2-butanone
  • acetaldehyde
  • acetone
  • propanal
Identify the product/s in the following reaction.
Chemistry-Alcohols Phenols and Ethers-33.png
  • CH3 CH2CH2 OH
  • CH3CHOHCH3
  • CH3CH2CHO
  • CH3CH2OH + CH3OH
  • CH3CHO + CH3OH
Which among the following compounds will give a secondary alcohol on reacting with Grignard's reagent followed by acid hydrolysis ?
I. HCHO
II C2H5CHO
III. CH3COCH3
IV. C2H5COOH
Select the correct answer using the codes given below.
  • Only II
  • Only III
  • I and IV
  • II and IV
Acid catalysed hydration of alkenes except ethene leads to the formation of
  • mixture of secondary and tertiary alcohols
  • mixture of primary and secondary alcohols
  • secondary or tertiary alcohol
  • primary alcohol
Which of the following combinations can be used to synthesise ethanol?
  • CH3 MgI and CH3 COCH3
  • CH3 MgI and C2 H5 OH
  • CH3 MgI and CH3 COOC2 H5
  • CH3 MgI and HCHO

Chemistry-Alcohols Phenols and Ethers-36.png
  • H2 /Ni
  • NaBH4
  • K2Cr2O7 /H+
  • Both (and (2)
The correct combination of names for isomeric alcohols with molecular formula C4H10O is/are
  • tert-butanol and 2-methyl propan-2-ol
  • tert-butanol and 1, 1-dimethyl ethan- 1 -ol
  • n-butanol and butan-1-ol
  • iso-butyl alcohol and 2-methyl propan- 1 -ol
  • All of these
0.44 g of a monohydric alcohol when added to methylmagnesium iodide in ether liberates at STP, 112 cm3 of methane. With PCC the same alcohol forms a carbonyl compound that answers silver mirror test. The monohydric alcohol is

  • Chemistry-Alcohols Phenols and Ethers-38.png
  • (CH3)3 C—CH2OH

  • Chemistry-Alcohols Phenols and Ethers-39.png
  • (CH3)2 CH—CH2OH
The correct statement regarding the following compounds is
Chemistry-Alcohols Phenols and Ethers-41.png
  • all three compounds are chiral
  • Only I and II are chiral
  • I and III are diastereomers
  • Only I and III are chiral
The relative case of dehydration of alcohols follows following order
  • tertiary > secondary > primary
  • primary > secondary > tertiary
  • secondary > tertiary > primary
  • tertiary > primary > secondary
An unknown alcohol is treated with the Lucas reagent to determine wheter the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism?
  • Secondary alcohol by SN1
  • Tertiary alcohol by SN2
  • Secondary alcohol by SN2
  • Tertiary alcohol by SN1
Upon treatment with I2 and aqueous NaOH, which of the following compounds will form iodoform?
  • CH3CH2CH2CH2CHO
  • CH3CH2 COCH2CH3
  • CH3CH2CH2CH2CH2OH
  • CH3CH2CH2CH (OH) CH3
The compound which gives turbidity immediately with Lucas reagent at room temperature is
  • butan-1-ol
  • butan-2 -ol
  • 2-methyl propan-2-ol
  • 2-methyl propan-1-ol
From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous ZnCl2 is
  • 2-butanol
  • 2-methyl propan-2-ol
  • 2-methylpropanol
  • 1 butanol
An oxygen containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by 14 units. The organic compound is
  • an aldehyde
  • a primary alcohol
  • a secondary alcohol
  • a ketone
The density of glycerol is higher than propanol due to
  • van der Waals' attraction
  • hydrogen bonding
  • ionic bonding
  • more number of covalent bonds
The main product of the following reaction is
Chemistry-Alcohols Phenols and Ethers-44.png

  • Chemistry-Alcohols Phenols and Ethers-45.png
  • 2)
    Chemistry-Alcohols Phenols and Ethers-46.png

  • Chemistry-Alcohols Phenols and Ethers-47.png

  • Chemistry-Alcohols Phenols and Ethers-48.png

Chemistry-Alcohols Phenols and Ethers-49.png
  • phenol
  • NaOH
  • ethanol
  • methanol
The function of ZnCl2 in Lucas test for alcohols is
  • to act as acid catalyst and react with HCl to form H2 ZnCl4
  • to act as base catalyst and react with NaOH to form Na2Zn(OH)4
  • to act as amphoteric catalyst
  • to act as neutral catalyst
Ethylene glycol reacts with excess of PCl5 to give
  • 1,1-dichloroethane
  • 1,2-dichloroethane
  • 1,1,1 -trichloroethane
  • 2,2-dichloroethane
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