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Organic Chemistry

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

Naming and structural formulae (IUPAC)

Subtopic

Naming and structural formulae (IUPAC) under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In IUPAC naming, which ending is used to show that a molecule belongs to the alkene series?

    A.

    -ane

    B.

    -ol

    C.

    -ene

    D.

    -oic

  2. 2.

    Which gas is the main component of natural gas and is named Methane?

    A.

    C2H6C_2H_6

    B.

    CH4CH_4

    C.

    C3H8C_3H_8

    D.

    C4H10C_4H_{10}

  3. 3.

    What is the IUPAC name of the hydrocarbon C2H6C_2H_6?

    A.

    Methane

    B.

    Ethane

    C.

    Ethene

    D.

    Propane

Download the worksheet for Organic Chemistry - Naming and structural formulae (IUPAC) to practice offline. It includes additional chapter-level practice questions.

Homologous series

Subtopic

Homologous series under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In the series of carboxylic acids, which member is found in stinging ants?

    A.

    Ethanoic acid

    B.

    Methanoic acid

    C.

    Propanoic acid

    D.

    Butanoic acid

  2. 2.

    Which hydrocarbon consists of three carbon atoms and only single bonds?

    A.

    Propane

    B.

    Propene

    C.

    Ethane

    D.

    Butane

  3. 3.

    Which of these is the name for the series with the general formula CnH2nC_nH_{2n}?

    A.

    Alkanes

    B.

    Alkenes

    C.

    Alcohols

    D.

    Carboxylic acids

Download the worksheet for Organic Chemistry - Homologous series to practice offline. It includes additional chapter-level practice questions.

Alkanes (Substitution reactions)

Subtopic

Alkanes (Substitution reactions) under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What determines how many hydrogen atoms are replaced in an alkane during substitution with a halogen?

    A.

    The temperature of the room

    B.

    The amount of halogen available

    C.

    The size of the reaction flask

    D.

    The color of the light used

  2. 2.

    What is the name of the reaction C3H8+Br2→C3H7Br+HBrC_{3}H_{8} + Br_{2} \rightarrow C_{3}H_{7}Br + HBr?

    A.

    Bromination

    B.

    Hydrogenation

    C.

    Hydration

    D.

    Polymerization

  3. 3.

    Which term best describes the alkanes in the context of their reactivity with halogens in the dark?

    A.

    Highly reactive

    B.

    Inert

    C.

    Unreactive

    D.

    Explosive

Download the worksheet for Organic Chemistry - Alkanes (Substitution reactions) to practice offline. It includes additional chapter-level practice questions.

Alkenes (Addition reactions)

Subtopic

Alkenes (Addition reactions) under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the primary product of adding water (as steam) to an alkene in the presence of an acid catalyst?

    A.

    An alkane

    B.

    An alcohol

    C.

    A ketone

    D.

    An aldehyde

  2. 2.

    Which of the following is produced when pent-1-ene reacts with hydrogen gas?

    A.

    Pentane

    B.

    Pentanol

    C.

    Pentyne

    D.

    Cyclopentane

  3. 3.

    What is the prefix used for the product when ethene reacts with two chlorine atoms?

    A.

    Methyl-

    B.

    Ethyl-

    C.

    Dichloro-

    D.

    Monochloro-

Download the worksheet for Organic Chemistry - Alkenes (Addition reactions) to practice offline. It includes additional chapter-level practice questions.

Alcohols (Fermentation and hydration)

Subtopic

Alcohols (Fermentation and hydration) under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of these is the correct formula for the third member of the alcohol series?

    A.

    CH3OHCH_3OH

    B.

    C2H5OHC_2H_5OH

    C.

    C3H7OHC_3H_7OH

    D.

    C4H9OHC_4H_9OH

  2. 2.

    In the series of alcohols, as the number of carbon atoms increases, what happens to the boiling point?

    A.

    It increases

    B.

    It decreases

    C.

    It stays the same

    D.

    It becomes zero

  3. 3.

    Which raw material for ethanol production is non-renewable?

    A.

    Sugar cane

    B.

    Corn

    C.

    Crude oil

    D.

    Barley

Download the worksheet for Organic Chemistry - Alcohols (Fermentation and hydration) to practice offline. It includes additional chapter-level practice questions.

Carboxylic acids (Ethanoic acid)

Subtopic

Carboxylic acids (Ethanoic acid) under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    If you mix ethanoic acid with an unknown white powder and bubbles of gas are produced that turn limewater cloudy, the powder is likely a...

    A.

    Metal

    B.

    Base

    C.

    Carbonate

    D.

    Alcohol

  2. 2.

    Which of the following is the structural formula for methanoic acid?

    A.

    CH3COOHCH_{3}COOH

    B.

    HCOOHHCOOH

    C.

    CH3CH2COOHCH_{3}CH_{2}COOH

    D.

    CH3OHCH_{3}OH

  3. 3.

    Ethanoic acid reacts with sodium carbonate to release carbon dioxide gas. How can this gas be tested?

    A.

    It relights a glowing splint.

    B.

    It turns limewater milky.

    C.

    It bleaches damp litmus paper.

    D.

    It makes a 'pop' sound with a lighted splint.

Download the worksheet for Organic Chemistry - Carboxylic acids (Ethanoic acid) to practice offline. It includes additional chapter-level practice questions.

Polymers (Addition and Condensation polymerization)

Subtopic

Polymers (Addition and Condensation polymerization) under Organic Chemistry for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following monomers is used in addition polymerization?

    A.

    Ethane

    B.

    Propene

    C.

    Ethanol

    D.

    Glucose

  2. 2.

    Which of these is a synthetic polyamide?

    A.

    Nylon

    B.

    Starch

    C.

    Terylene

    D.

    Cellulose

  3. 3.

    What is the linkage in a protein also commonly known as?

    A.

    Peptide bond

    B.

    Ionic bond

    C.

    Metallic bond

    D.

    Ester bond

Download the worksheet for Organic Chemistry - Polymers (Addition and Condensation polymerization) to practice offline. It includes additional chapter-level practice questions.

Organic Chemistry - Grade 11 Chemistry (IGCSE) | Krit.club