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.

    Which of the following ethers form peroxide readily?

    A

    Me—O—Me{\rm{Me}}—{\rm{O}}—{\rm{Me}}

    B

    Et—O—Et{\rm{Et}}—{\rm{O}}—{\rm{Et}}

    C

    iPr—O—iPr{\rm{iPr}}—{\rm{O}}—{\rm{iPr}}

    D

    Me—O—Et{\rm{Me}}—{\rm{O}}—{\rm{Et}}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ether structure, peroxide formation, steric hindrance, radical stability

    2.

    Which of the following is not isomeric with diethyl ether?

    A

    Methyl n−n - propyl ether

    B

    Butan-1-ol

    C

    2-methyl propan-2-ol

    D

    Butan-2-one

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Isomers, Functional Groups, Molecular Formula

    3.

    CH3−CH2−O−CH2−CH3{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{O}} - {\rm{C}}{{\rm{H}}_2} - {\rm{C}}{{\rm{H}}_3} reacts with hot and excess HI, then formed product is

    A

    CH3−CH2−I  and  CH3CH2OH{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{I\;and\;C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_2}{\rm{OH}}

    B

    CH3−CH2−OH{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{OH}}

    C

    CH3−CH2−I{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{I}}

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Ether cleavage, SN2 reaction, Reaction with HI

    4.

    CH3−CH2−O−CH2−CH3{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{O}} - {\rm{C}}{{\rm{H}}_2} - {\rm{C}}{{\rm{H}}_3} reacts with hot and excess HI, then formed product is

    A

    CH3−CH2−I  and  CH3CH2OH{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{I\;and\;C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_2}{\rm{OH}}

    B

    CH3−CH2−OH{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{OH}}

    C

    CH3−CH2−I{\rm{C}}{{\rm{H}}_3} - {\rm{C}}{{\rm{H}}_2} - {\rm{I}}

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Ether cleavage, SN2 reaction, Reaction with HI

    5.

    The products formed in the following reaction,

    C6H5{{\rm{C}}_6}{{\rm{H}}_5}—O{\rm{O}}—CH3+HI→Heat{\rm{C}}{{\rm{H}}_3} + {\rm{HI}}\xrightarrow{{{\rm{Heat}}}} are:

    A

    C6H5OH{{\rm{C}}_6}{{\rm{H}}_5}{\rm{OH}} and CH3I{\rm{C}}{{\rm{H}}_3}{\rm{I}}

    B

    C6H5I{{\rm{C}}_6}{{\rm{H}}_5}{\rm{I}} and CH3OH{\rm{C}}{{\rm{H}}_3}{\rm{OH}}

    C

    C6H5CH3{{\rm{C}}_6}{{\rm{H}}_5}{\rm{C}}{{\rm{H}}_3} and HOI{\rm{HOI}}

    D

    C6H6{{\rm{C}}_6}{{\rm{H}}_6} and CH3OI{\rm{C}}{{\rm{H}}_3}{\rm{OI}}

    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

    6.

    The cleavage of an aryl-alkyl ether with hydrogen halide will give:

    A

    A molecule each of an alkyl halide and water

    B

    A molecule each of an aryl halide and water

    C

    A molecule each of an alkyl halide, aryl halide and water

    D

    A molecule each of phenol and an alkyl halide

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :ether cleavage, SN1/SN2 reactions, hydrogen halide reactions, phenol formation

    7.

    (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 :SN2 reaction, alkoxide, alkyl halide

    8.

    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

    9.

    TertTert-butyl methyl ether on heating with anhydrous HI in ether gives

    A

    CH3OH+(CH3)3CI{\rm{C}}{{\rm{H}}_3}{\rm{OH}} + {\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{CI}}

    B

    CH3I+(CH3)3COH{\rm{C}}{{\rm{H}}_3}{\rm{I}} + {\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{COH}}

    C

    CH3I+(CH3)3Cl{\rm{C}}{{\rm{H}}_3}{\rm{I}} + {\left( {{\rm{C}}{{\rm{H}}_3}} \right)_3}{\rm{Cl}}

    D

    None of the above

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Ether cleavage, SN1 reaction, Carbocation stability

    10.

    A Wittig reaction with an aldehyde gives

    A

    Ketone compound

    B

    A long chain fatty acid

    C

    Olefin compound

    D

    Epoxide

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Alcohols, Phenols And Ethers
    🎯Topic:Ethers
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Wittig reaction, Aldehyde, Alkene (Olefin), Organic Reaction Mechanisms

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