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Hydrocarbons

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Classification of Hydrocarbons

Subtopic

Classification of Hydrocarbons under Hydrocarbons for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is NOT an aliphatic hydrocarbon?

    A.

    Methane

    B.

    Ethane

    C.

    Propyne

    D.

    Benzene

  2. 2.

    Identify the formula of Hexane.

    A.

    C6H12C_{6}H_{12}

    B.

    C6H10C_{6}H_{10}

    C.

    C6H14C_{6}H_{14}

    D.

    C6H6C_{6}H_{6}

  3. 3.

    How many double bonds are present in a molecule of benzene?

    A.

    1

    B.

    2

    C.

    3

    D.

    6

Download the worksheet for Hydrocarbons - Classification of Hydrocarbons to practice offline. It includes additional chapter-level practice questions.

Alkanes - Nomenclature, Isomerism, Preparation and Properties

Subtopic

Alkanes - Nomenclature, Isomerism, Preparation and Properties under Hydrocarbons for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the composition of soda lime used in the decarboxylation reaction?

    A.

    NaOH+Ca(OH)2NaOH + Ca(OH)_2

    B.

    NaOH+CaONaOH + CaO

    C.

    Na2CO3+CaONa_2CO_3 + CaO

    D.

    KOH+CaOKOH + CaO

  2. 2.

    The melting points of alkanes with an even number of carbon atoms are higher than those with an odd number because of:

    A.

    Higher molecular mass

    B.

    Better packing in the crystal lattice

    C.

    Lower surface area

    D.

    Presence of more methyl groups

  3. 3.

    During the chlorination of methane, which radical is formed first after the initiation step?

    A.

    Chlorine radical

    B.

    Methyl radical

    C.

    Ethyl radical

    D.

    Hydrogen radical

Download the worksheet for Hydrocarbons - Alkanes - Nomenclature, Isomerism, Preparation and Properties to practice offline. It includes additional chapter-level practice questions.

Alkenes - Nomenclature, Structure of Double Bond, Geometrical Isomerism, Preparation and Properties

Subtopic

Alkenes - Nomenclature, Structure of Double Bond, Geometrical Isomerism, Preparation and Properties under Hydrocarbons for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is a byproduct in the ozonolysis reaction when ZnZn dust is used?

    A.

    ZnOZnO

    B.

    ZnCl2ZnCl_2

    C.

    ZnSO4ZnSO_4

    D.

    Zn(OH)2Zn(OH)_2

  2. 2.

    Which of the following is the correct IUPAC name for CH3−CH=C(CH3)−CH2−CH3CH_3-CH=C(CH_3)-CH_2-CH_3?

    A.

    3-Methylpent-2-ene

    B.

    2-Ethylbut-2-ene

    C.

    3-Methylpent-3-ene

    D.

    Hex-2-ene

  3. 3.

    What happens to the boiling point of alkenes as the molecular mass increases?

    A.

    It decreases

    B.

    It remains constant

    C.

    It increases

    D.

    It first increases then decreases

Download the worksheet for Hydrocarbons - Alkenes - Nomenclature, Structure of Double Bond, Geometrical Isomerism, Preparation and Properties to practice offline. It includes additional chapter-level practice questions.

Alkynes - Nomenclature, Structure of Triple Bond, Preparation and Properties

Subtopic

Alkynes - Nomenclature, Structure of Triple Bond, Preparation and Properties under Hydrocarbons for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Identify the number of spsp hybridized carbon atoms in the molecule of but-1-yne.

    A.

    1

    B.

    2

    C.

    3

    D.

    4

  2. 2.

    Which of the following is a pair of position isomers?

    A.

    Ethyne and Propyne

    B.

    But-1-yne and But-2-yne

    C.

    But-1-yne and But-1-ene

    D.

    Propyne and Cyclopropene

  3. 3.

    What is the IUPAC name of the alkyne with the formula C6H10C_6H_{10} that has the triple bond at the first carbon?

    A.

    Hex-1-yne

    B.

    Hex-2-yne

    C.

    Hex-3-yne

    D.

    Hex-1-ene

Download the worksheet for Hydrocarbons - Alkynes - Nomenclature, Structure of Triple Bond, Preparation and Properties to practice offline. It includes additional chapter-level practice questions.

Aromatic Hydrocarbons - Nomenclature, Benzene Structure and Aromaticity

Subtopic

Aromatic Hydrocarbons - Nomenclature, Benzene Structure and Aromaticity under Hydrocarbons for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the hybridization of each carbon atom in the Benzene ring?

    A.

    sp3sp^3

    B.

    spsp

    C.

    dsp2dsp^2

    D.

    sp2sp^2

  2. 2.

    According to Huckel's Rule, a cyclic, planar, and conjugated system is aromatic if it contains (4n+2)π(4n+2) \pi electrons. What is the value of 'nn' for a single Benzene ring?

    A.

    1

    B.

    0

    C.

    2

    D.

    3

  3. 3.

    All Carbon-Carbon bond lengths in Benzene (C6H6C_6H_6) are equal (139 pm139\ pm). This phenomenon is best explained by which of the following?

    A.

    Tautomerism

    B.

    Resonance

    C.

    Inductive Effect

    D.

    Hyperconjugation

Download the worksheet for Hydrocarbons - Aromatic Hydrocarbons - Nomenclature, Benzene Structure and Aromaticity to practice offline. It includes additional chapter-level practice questions.

Chemical Properties of Benzene and Electrophilic Substitution Reactions

Subtopic

Chemical Properties of Benzene and Electrophilic Substitution Reactions under Hydrocarbons for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Complete combustion of benzene in excess air produces water and which gas?

    A.

    Carbon monoxide

    B.

    Carbon dioxide

    C.

    Methane

    D.

    Sulfur dioxide

  2. 2.

    Who is credited with the discovery of benzene in 1825?

    A.

    Michael Faraday

    B.

    August Kekulé

    C.

    Joseph Priestley

    D.

    Antoine Lavoisier

  3. 3.

    The phenyl group is represented by which of the following formulas?

    A.

    C6H6−C_6H_6-

    B.

    C6H5−C_6H_5-

    C.

    C6H7−C_6H_7-

    D.

    C6H4−C_6H_4-

Download the worksheet for Hydrocarbons - Chemical Properties of Benzene and Electrophilic Substitution Reactions to practice offline. It includes additional chapter-level practice questions.

Hydrocarbons - CBSE Class 11 Chemistry Notes & Revision | Krit.club