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    Topic: Functional Groups And Types Of Organic Compounds

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    Functional Groups And Types Of Organic Compounds
    1

    Given the organic functional group:

    functional-groups-and-types-of-organic-compounds fig: chem12020-exam_g1.png

    Which class of organic compounds has molecules with this functional group?

    (1) aldehydes

    (2) esters

    (3) ketones

    (4) organic acids

    2

    Given the formula for a compound:

    functional-groups-and-types-of-organic-compounds fig: chem82019-exam_g8.png

    What is the name of this compound?

    (1) methyl butanoate

    (2) methyl butyl ether

    (3) pentanone

    (4) pentanoic acid

    3

    Which functional group contains a nitrogen atom and an oxygen atom?

    (1) ester

    (2) ether

    (3) amide

    (4) amine

    4

    An alcohol and an ether have the same molecular formula, C2H6O. These two compounds have

    (1) the same functional group and the same physical and chemical properties

    (2) the same functional group and different physical and chemical properties

    (3) different functional groups and the same physical and chemical properties

    (4) different functional groups and different physical and chemical properties

    5

    Amines, amides, and amino acids are categories of

    (1) isomers

    (2) isotopes

    (3) organic compounds

    (4) inorganic compounds

    Base your answers to questions 6 on the information below and on your knowledge of chemistry.

    Ethyl ethanoate is used as a solvent for varnishes and in the manufacture of artifi cial leather. The formula below represents a molecule of ethyl ethanoate.

    organic-compounds fig: chem62019-exam_g16.png

    6

    Write the name of the class of organic compounds to which this compound belongs.

    Allow 1 credit for ester or esters.

    7

    Draw a structural formula for methanal.

    Allow 1 credit.

    • Examples of 1-credit responses:

    • functional-groups-and-types-of-organic-compounds fig: chem62019-rg_g5101.png

    • functional-groups-and-types-of-organic-compounds fig: chem62019-rg_g5102.png

    • functional-groups-and-types-of-organic-compounds fig: chem62019-rg_g5103.png

    Base your answers to questions 8 on the information below and on your knowledge of chemistry.

    Fatty acids, a class of compounds found in living things, are organic acids with long hydrocarbon chains. Linoleic acid, an unsaturated fatty acid, is essential for human skin flexibility and smoothness. The formula below represents a molecule of linoleic acid.

    formulas fig: chem62018-exam_g26.png

    8

    On the diagram in your answer booklet, circle the organic acid functional group.

    Allow 1 credit.

    • Examples of 1-credit reponses:

    • functional-groups-and-types-of-organic-compounds fig: chem62018-rg_g8.png

    Base your answers to questions 9 on the information below and your knowledge of chemistry.

    Methanol can be manufactured by a reaction that is reversible. In the reaction, carbon monoxide gas and hydrogen gas react using a catalyst. The equation below represents this system at equilibrium.

    CO(g) + 2H2(g) ⇌ CH3OH(g) + energy

    9

    State the class of organic compounds to which the product of the forward reaction belongs.

    Allow 1 credit for alcohol or alcohols.

    10

    Draw a structural formula for 2-butanol.

    Allow 1 credit.

    • Examples of 1-credit responses

    • functional-groups-and-types-of-organic-compounds fig: chem62018-rg_g1.png

    Base your answers to questions 11 on the information below and on your knowledge of chemistry.

    Polyvinyl chloride (PVC) is a polymer used to make drain pipes, flooring, electric wire insulation, and some plastic bottles. Making PVC requires several reactions. The first step is represented by the equation below.

    hydrocarbons fig: chem12018-exam_g18.png

    The 1,2-dichloroethane is converted to vinyl chloride. To produce PVC, the vinyl chloride monomer is polymerized, as represented by the equation below.

    hydrocarbons fig: chem12018-exam_g19.png

    11

    Draw a structural formula for the product of equation 1.

    Allow 1 credit.

    • Examples of 1-credit responses:

    • functional-groups-and-types-of-organic-compounds fig: chem12018-rg_g4.png

    Base your answers to questions 12 on the information below and on your knowledge of chemistry.

    The equation below represents the reaction between 2-methylpropene and hydrogen chloride gas.

    hydrocarbons fig: chem82017-exam_g16.png

    12

    Identify the class of organic compounds to which the product belongs.

    Allow 1 credit. Acceptable responses include, but are not limited to:

    • halide

    • halocarbons

    • alkyl halide

    Base your answers to questions 13 on the information below and on your knowledge of chemistry.

    Molecules containing two carbon atoms and a functional group have many home and industrial uses. These compounds can be produced by a variety of reactions, as shown by the equations below.

    Equation 1: C2H4 + H2O → CH3CH2OH

    Equation 2: 2CH3CH2OH + O2 → 2CH3CHO + 2H2O

    Equation 3: 2CH3CHO + O2 → 2CH3COOH

    13

    Identify the class of organic compounds to which the product in equation 3 belongs.

    Allow 1 credit. Acceptable responses include, but are not limited to:

    • organic acid

    • carboxylic acid

    • acids

    Base your answers to questions 14 on the information below and on your knowledge of chemistry.

    In industry, ethanol is primarily produced by two different reactions. One process involves the reaction of glucose in the presence of an enzyme that acts as a catalyst. The equation below represents this reaction.

    organic-compounds fig: chem82016-exam_g17.png

    In another reaction, ethanol is produced from ethene and water. The equation below represents this reaction in which H2SO4 is a catalyst.

    organic-compounds fig: chem82016-exam_g18.png

    Industrial ethanol can be oxidized using a catalyst to produce ethanal. The equation representing this oxidation is shown below.

    organic-compounds fig: chem82016-exam_g19.png

    14

    Draw a structural formula for the organic product in equation 3.

    Allow 1 credit.

    • Examples of 1-credit responses:

    • functional-groups-and-types-of-organic-compounds fig: chem82016-rg_g4rd050.png

    Base your answers to questions 15 on the information below and on your knowledge of chemistry.

    The equation below represents a reaction between propene and hydrogen bromide.

    chemical-reactions-and-equations fig: chem82016-exam_g13.png

    Cyclopropane, an isomer of propene, has a boiling point of –33ºC at standard pressure and is represented by the formula below.

    chemical-reactions-and-equations fig: chem82016-exam_g14.png

    15

    Identify the class of organic compounds to which the product of this reaction belongs.

    Allow 1 credit. Acceptable responses include, but are not limited to:

    • halide

    • halocarbon

    • alkyl halide