1.

    An unknown ether, upon treatment with HI, produces a single alkyl iodide. This alkyl iodide, when reacted with sodium in dry ether, forms n-hexane. Identify the original ether.

    A

    Diethyl ether

    B

    Dipropyl ether

    C

    Dibutyl ether

    D

    Diisopropyl ether

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Hard
    ⚡ Time Required :2.5 mins
    🔄Ncert Concepts :Ethers, Cleavage of Ethers, Wurtz Reaction

    Related Questions

    1.

    Diethyl ether is decomposed on heating with:

    A

    NaOH{\rm{NaOH}}

    B

    Water

    C

    KMnO4{\rm{KMn}}{{\rm{O}}_4}

    D

    HI{\rm{HI}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ether reactions, nucleophilic substitution, acidic cleavage

    2.

    Ethyl chloride is converted into diethyl ether by

    A

    Perkins reaction

    B

    Grignard reagent

    C

    Wurtz reaction

    D

    Williamson’s synthesis

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :organic reactions, ether synthesis, nucleophilic substitution

    3.

    Diethyl ether is decomposed on heating with:

    A

    NaOH{\rm{NaOH}}

    B

    Water

    C

    KMnO4{\rm{KMn}}{{\rm{O}}_4}

    D

    HI{\rm{HI}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Understanding
    🎯Difficulty :Hard
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ether reactions, acid-catalyzed cleavage, nucleophilic substitution

    4.

    In Williamson’s synthesis ethoxy ethane is prepared by

    A

    Passing ethanol over heated alumina

    B

    Heating sodium ethoxide with ethyl bromide

    C

    Treating ethyl alcohol with excess of H2SO4{{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4} at 430-440 K

    D

    Heating ethanol with dry Ag2O{\rm{A}}{{\rm{g}}_2}{\rm{O}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Williamson ether synthesis, nucleophilic substitution

    5.

    Which of the following reactions does not yield an ether?

    A

    Williamson ether synthesis

    B

    Alkoxymercuration-demercuration

    C

    Dehydration of alcohols

    D

    Reaction of phenols with alkyl halides

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Williamson ether synthesis, reaction mechanisms, nucleophilic substitution, carbocation rearrangement, ether formation

    6.

    (CH3)3CONa{\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{CONa}} on reaction with CH3Br{\rm{C}}{{\rm{H}}_3}{\rm{Br}} will give:

    A

    (CH3)3COC(CH3)3{\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{COC}}{\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}

    B

    CH3OCH3{\rm{C}}{{\rm{H}}_3}{\rm{OC}}{{\rm{H}}_3}

    C

    CH3CH2OCH2CH3{\rm{C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_2}{\rm{OC}}{{\rm{H}}_2}{\rm{C}}{{\rm{H}}_3}

    D

    (CH3)3COCH3{\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{COC}}{{\rm{H}}_3}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Williamson ether synthesis, nucleophilic substitution, SN2 reaction

    7.

    One mole of an organic compound AA with the formula C3H8O{{\rm{C}}_3}{{\rm{H}}_8}{\rm{O}} reacts completely with two moles of HI to form XX and YY. When YY is boiled with aqueous alkali it forms ZZ. ZZ answers the iodoform test. The compound AA is

    A

    Propan-2-ol

    B

    Methoxyethane

    C

    Propan-1-ol

    D

    Propane-1,2-diol

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Reaction with HI, Nucleophilic substitution, Ether cleavage, Hydrolysis, Iodoform test, Structure determination

    8.

    The cleavage of an aryl-alkyl ether with cold HI gives

    A

    Alkyl iodide and water

    B

    Aryl iodide and water

    C

    Alkyl iodide, aryl iodide and water

    D

    Phenol and alkyl iodine

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Ethers, Cleavage, SN1 Reaction, Nucleophilic substitution

    9.

    On boiling with concentrated hydrobromic acid, phenyl ethyl ether yields

    A

    Phenol and ethane

    B

    Phenol and ethyl bromide

    C

    Bromobenzene and ethanol

    D

    Bromobenzene and ethane

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ether cleavage, nucleophilic substitution, reaction mechanism

    10.

    Ethyl iodide on treatment with dry Ag2O{\rm{A}}{{\rm{g}}_2}{\rm{O}} will yield:

    A

    Ethyl alcohol

    B

    Diethyl ether

    C

    Ethyl methyl ether

    D

    Ethylene

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Reaction of alkyl halides, Williamson ether synthesis, Nucleophilic substitution

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