1.

    Considering only monochlorination, how many structural isomers are possible for the product formed when isopentane reacts with Cl2Cl_2 in presence of UV light?

    A

    1

    B

    2

    C

    3

    D

    4

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Alkanes, Halogenation, Isomerism

    Related Questions

    1.

    The alkane that gives only one mono chloro product on chlorination with Cl2C{l_2} in presence of diffused sunlight

    A

    2,2- dimethyl butane

    B

    Neo pentane

    C

    n-Pentane

    D

    Iso-Pentane

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Free radical halogenation, Isomers, Monosubstitution

    2.

    Which reagent is used with sodium butanoate (CH3CH2CH2COOβˆ’Na+CH_3CH_2CH_2COO^-Na^+) upon heating to produce propane (C3H8C_3H_8) and sodium carbonate (Na2CO3Na_2CO_3)?

    A

    Soda lime (NaOH + CaO)

    B

    Sodium hydroxide (NaOH)

    C

    Sodium carbonate (Na2CO3Na_2CO_3)

    D

    Calcium oxide (CaO)

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    PYQ YEAR: 2021
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Organic Chemistry, Decarboxylation, Carboxylic Acids

    3.

    Kolbe’s synthesis of sodium salt of butanoic acid gives:

    A

    n-hexane

    B

    Isobutane

    C

    Butane-1

    D

    Ethylene

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Kolbe electrolysis, decarboxylation, alkane synthesis

    4.

    The chemicals and the reaction conditions required for the preparation of ethane are

    A

    C2H5I,Znβˆ’Cu,C2H5OH{{\rm{C}}_2}{{\rm{H}}_5}{\rm{I}},{\rm{Zn}} - {\rm{Cu}},{{\rm{C}}_2}{{\rm{H}}_5}{\rm{OH}}

    B

    CH3Cl,Na,H2O{\rm{C}}{{\rm{H}}_3}{\rm{Cl}},{\rm{Na}},{{\rm{H}}_2}{\rm{O}}

    C

    KOOCβˆ’CH=CHβˆ’COOK,electrolysis{\rm{KOOC}} - {\rm{CH}} = {\rm{CH}} - {\rm{COOK}},{\rm{electrolysis}}

    D

    CH3CO2Na,NaOH,CaO,Ξ”{\rm{C}}{{\rm{H}}_3}{\rm{C}}{{\rm{O}}_2}{\rm{Na}},{\rm{NaOH}},{\rm{CaO}},\Delta

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Organic reactions, reduction, Wurtz reaction, decarboxylation, Kolbe electrolysis

    5.

    CH4{\rm{C}}{{\rm{H}}_4} is formed when:

    A

    Sodium acetate is heated with soda lime

    B

    Iodo methane is reduced

    C

    Aluminium carbide reacts with water

    D

    All of the above

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Organic Reactions, Reduction Reactions, Hydrolysis

    6.

    Which of the following gives methane [CH4][{\rm{C}}{{\rm{H}}_4}] on hydrolysis?

    A

    Fe3O4{\rm{F}}{{\rm{e}}_3}{{\rm{O}}_4}

    B

    Al2O3{\rm{A}}{{\rm{l}}_2}{{\rm{O}}_3}

    C

    CaC2{\rm{Ca}}{{\rm{C}}_2}

    D

    Al4C3{\rm{A}}{{\rm{l}}_4}{{\rm{C}}_3}

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Hydrolysis, Metal Carbides, Chemical Reactions

    7.

    Which of the following cycloalkane gives open chain compound, when reacts with bromine?

    A

    Cyclopropane

    B

    Cyclopentane

    C

    Cyclohexane

    D

    Cyclooctane

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Medium
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Cycloalkanes, Ring Strain, Halogenation, Reaction Mechanism

    8.

    Which will give cyclooctyne when treated with base?

    A

    1,2-dibromocyclobutane

    B

    1,1-dibromocyclobutane

    C

    1,1-dibromocyclooctane

    D

    1,2-dibromocyclopropane

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :elimination reactions, alkyne formation, ring size, steric hindrance

    9.

    Which statement is FALSE regarding the chlorination of 2,2,4-trimethylpentane at 300 K?

    A

    The relative reactivity of tertiary hydrogens compared to primary hydrogens is greater than 1.

    B

    The reaction proceeds via a radical mechanism.

    C

    The tertiary hydrogen is chlorinated preferentially, yielding 4-chloro-2,2,4-trimethylpentane as the major product.

    D

    Multiple monochlorinated products are formed.

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Hard
    ⚑ Time Required :2 mins
    πŸ”„Ncert Concepts :Alkanes, Halogenation, Free Radical Mechanism, Reactivity

    10.

    Electrolysis of an aqueous solution of sodium acetate, yields

    A

    Ethane, carbon dioxide, and hydrogen

    B

    Methane, carbon monoxide, and oxygen

    C

    Sodium metal, carbon dioxide, and oxygen

    D

    Ethanoic acid, carbon monoxide, and hydrogen

    Question Tags
    πŸ“š Subject:Chemistry
    πŸ“‘ Chapter:Hydrocarbons
    🎯Topic:Alkanes
    πŸŽ“ Ncert Level:Application
    🎯Difficulty :Easy
    ⚑ Time Required :3 mins
    πŸ”„Ncert Concepts :Electrolysis, Kolbe electrolysis, decarboxylation, organic reaction mechanisms

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