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Unit 1: Hydrocarbons
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Questions in this quiz (75)
1Organic compounds primarily have:
- AIonic bonds
- BCovalent bonds
- CMetallic bonds
- DHydrogen bonds
2Most organic compounds form:
- APolar molecules
- BNonpolar molecules
- CIonic molecules
- DMetallic molecules
3Organic compounds typically have:
- AHigh melting points and boiling points
- BLow melting points and boiling points
- CHigh melting points and low boiling points
- DLow melting points and high boiling points
4Organic compounds are generally:
- AHighly soluble in water
- BSlightly soluble in water
- CNot very soluble in water
- DCompletely insoluble in water
5In solutions, organic compounds typically:
- ADissolve as ions
- BDissolve as molecules
- CDo not dissolve
- DForm precipitates
6Organic compounds:
- ADo not burn in air
- BBurn vigorously in air
- CBurn slowly in air
- DExplode in air
7Inorganic compounds generally have:
- ACovalent bonds
- BPolar covalent bonds or ionic bonds
- CMetallic bonds
- DNonpolar covalent bonds
8Inorganic compounds typically have:
- ALow melting points and boiling points
- BHigh melting points and boiling points
- CVariable melting points and boiling points
- DLow melting points and high boiling points
9Inorganic compounds are usually:
- ASoluble in water
- BSlightly soluble in water
- CInsoluble in water
- DHighly soluble in nonpolar solvents
10In water, inorganic compounds generally:
- AProduce ions
- BDissolve as molecules
- CDo not dissolve
- DForm covalent bonds
11Inorganic compounds:
- ABurn vigorously in air
- BBurn slowly in air
- CDo not burn in air
- DExplode in air
12In methane (CH₄), the C—H bonds are directed to the corners of a:
- ASquare
- BTetrahedron
- CHexagon
- DPentagon
13The bond angles in methane (CH₄) are:
- A90°
- B120°
- C109°
- D180°
14In the expanded structural formula of an organic molecule, each bond is represented by:
- AA dot
- BA dash
- CA line
- DA triangle
15Alkanes are hydrocarbons that have only:
- AC=C double bonds
- BC—C single bonds
- CC≡C triple bonds
- DC—H single bonds
16A condensed structural formula depicts:
- AEach atom separately
- BGroups composed of each carbon atom and its attached hydrogen atoms
- COnly the carbon atoms
- DOnly the hydrogen atoms
17A line-angle formula represents the carbon skeleton as:
- AStraight lines
- BDots and dashes
- CEnds and corners of a zigzag line or geometric figure
- DCurved lines
18The IUPAC system is used to name organic compounds by:
- AIndicating the number of hydrogen atoms
- BIndicating the number of carbon atoms
- CUsing common names
- DUsing colors
19The name of a cycloalkane is written by placing the prefix cyclo before:
- AThe number of hydrogen atoms
- BThe alkane name with the same number of carbon atoms
- CThe IUPAC name of the compound
- DThe chemical formula of the compound
20Structural isomers are compounds that:
- AHave different molecular formulas but the same physical properties
- BHave the same molecular formulas but differ in the order in which their atoms are bonded
- CHave different molecular formulas and different physical properties
- DHave the same molecular formulas and the same order of bonding
21Substituents attached to an alkane chain include:
- AOnly alkyl groups
- BOnly halogen atoms
- CBoth alkyl groups and halogen atoms (F, Cl, Br, or I)
- DOnly hydrogen atoms
22In the IUPAC system, alkyl substituents have names such as:
- AMethane, propane, and isopropane
- BMethyl, propyl, and isopropyl
- CEthyl, butane, and isobutane
- DMethanol, propanol, and isopropanol
23Halogen atoms as substituents are named as:
- AFluorine, chlorine, bromine, or iodine
- BFluoride, chloride, bromide, or iodide
- CFluoro, chloro, bromo, or iodo
- DF, Cl, Br, or I
24Alkanes are:
- APolar molecules
- BNonpolar molecules
- CIonic molecules
- DAmphipathic molecules
25Alkanes are:
- AHighly soluble in water
- BSlightly soluble in water
- CNot soluble in water
- DCompletely insoluble in all solvents
26Alkanes are usually:
- AMore dense than water
- BLess dense than water
- CEqually dense as water
- DVariable in density compared to water
27When alkanes undergo combustion, they react with oxygen to produce:
- ACarbon monoxide, water, and energy
- BCarbon dioxide, water, and energy
- CMethane, water, and energy
- DCarbon, water, and energy
28Alkenes are unsaturated hydrocarbons that contain:
- ACarbon–carbon single bonds
- BCarbon–carbon double bonds
- CCarbon–carbon triple bonds
- DCarbon–hydrogen bonds
29Alkynes contain:
- ACarbon–carbon single bonds
- BCarbon–carbon double bonds
- CCarbon–carbon triple bonds
- DCarbon–oxygen bonds
30The IUPAC names of alkenes end with:
- Aane
- Bene
- Cyne
- Done
31The IUPAC names of alkynes end with:
- Aane
- Bene
- Cyne
- Done
32The main chain in alkenes and alkynes is numbered from the end:
- ANearer the double or triple bond
- BFarther from the double or triple bond
- CNearer the first carbon atom
- DNearer the first hydrogen atom
33Geometric or cis–trans isomers of alkenes occur when the carbon atoms in the double bond are connected to:
- AIdentical atoms or groups
- BDifferent atoms or groups
- COnly hydrogen atoms
- DOnly carbon atoms
34In the cis isomer, the similar groups are on:
- AOpposite sides of the double bond
- BThe same side of the double bond
- CDifferent molecules
- DDifferent bonds
35In the trans isomer, the similar groups are:
- AOn opposite sides of the double bond
- BOn the same side of the double bond
- COn different molecules
- DOn different bonds
36The addition of small molecules to the double bond is a characteristic reaction of:
- AAlkanes
- BAlkenes
- CAlkynes
- DAromatic compounds
37Hydrogenation adds hydrogen atoms to the double bond of an alkene to yield:
- AAn alkene
- BAn alkyne
- CAn alcohol
- DAn alkane
38Hydration adds water to a double bond of an alkene to form:
- AAn alkane
- BAn alkyne
- CAn alcohol
- DA ketone
39When a different number of hydrogen atoms are attached to the carbons in a double bond, the H— from water adds to the carbon with:
- AThe fewer number of H atoms
- BThe greater number of H atoms
- CNo H atoms
- DEqual number of H atoms
40Polymers are long-chain molecules that consist of many repeating units of smaller carbon molecules called:
- ADimers
- BTrimers
- COligomers
- DMonomers
41Many materials that we use every day are made from synthetic polymers, including:
- AWood, metal, and glass
- BCarpeting, plastic wrap, nonstick pans, and nylon
- CCotton, wool, and silk
- DStone, brick, and concrete
42Many synthetic materials are made using addition reactions in which a catalyst links the carbon atoms from various kinds of alkene molecules, known as:
- APolymers
- BDimers
- CMonomers
- DTetramers
43Many materials used in medicine are made from synthetic polymers, including:
- AMetal implants, ceramic bones, and glass lenses
- BTubing, IV containers, and face masks
- CWooden splints, cotton bandages, and linen sheets
- DStone casts, brick braces, and concrete splints
44Most aromatic compounds contain:
- AMethane
- BEthane
- CBenzene
- DPropane
45The structure of benzene is represented as a:
- ASquare with a circle in the center
- BHexagon with a circle in the center
- CTriangle with a circle in the center
- DPentagon with a circle in the center
46The IUPAC system uses the names of:
- ABenzene, toluene, aniline, and phenol
- BBenzene, methane, ethane, and propane
- CBenzene, cyclohexane, cyclopentane, and cycloheptane
- DBenzene, acetylene, ethylene, and propylene
47In the IUPAC name, two or more substituents are:
- ANumbered and listed in alphabetical order
- BNumbered and listed in numerical order
- CListed without numbering
- DListed in reverse alphabetical order
48In the common name with two substituents, the positions are shown by the prefixes:
- AOrtho (1,3-), meta (1,2-), and para (1,4-)
- BOrtho (1,4-), meta (1,3-), and para (1,2-)
- COrtho (1,2-), meta (1,4-), and para (1,3-)
- DOrtho (1,2-), meta (1,3-), and para (1,4-)
49An addition reaction is a reaction in which atoms or groups of atoms bond to a:
- ACarbon–carbon single bond
- BCarbon–carbon double bond
- CCarbon–carbon triple bond
- DCarbon–hydrogen bond
50Addition reactions include the addition of:
- AHydrogen (hydrogenation)
- BWater (hydration)
- CMonomers (polymerization)
- DAll of the above
51An alkane is a hydrocarbon that contains:
- AOnly single bonds between carbon atoms
- BOne or more double bonds between carbon atoms
- COne or more triple bonds between carbon atoms
- DBoth double and triple bonds between carbon atoms
52An alkene is a hydrocarbon that contains:
- AOnly single bonds between carbon atoms
- BOne or more double bonds between carbon atoms (C=C)
- COne or more triple bonds between carbon atoms (C≡C)
- DBoth single and triple bonds between carbon atoms
53An alkyl group is:
- AAn alkane minus one hydrogen atom
- BAn alkene minus one hydrogen atom
- CAn alkyne minus one hydrogen atom
- DA benzene ring minus one hydrogen atom
54Alkyl groups are named like the alkanes except a ___ ending replaces ___.
- Aane, yl
- Bene, ane
- Cyl, ane
- Dane, ene
55An alkyne is a hydrocarbon that contains:
- AOnly single bonds between carbon atoms
- BOne or more double bonds between carbon atoms (C=C)
- COne or more triple bonds between carbon atoms (C≡C)
- DBoth single and double bonds between carbon atoms
56An aromatic compound is a compound that contains:
- AA linear structure of carbon atoms
- BThe ring structure of benzene
- CA single carbon atom
- DA triple bond between carbon atoms
57Benzene is:
- AA ring of six carbon atoms, each of which is attached to a hydrogen atom, C₆H₆
- BA chain of six carbon atoms with hydrogen atoms attached, C₆H₆
- CA ring of six carbon atoms with alternating double bonds, C₆H₆
- DA structure with six hydrogen atoms only, C₆H₆
58A cis isomer is an isomer of an alkene in which similar groups in the double bond are:
- AOn the opposite side
- BOn the same side
- CAttached to different molecules
- DOn alternating sides
59A condensed structural formula shows:
- AOnly the carbon atoms in a molecule
- BThe arrangement of the carbon atoms in a molecule but groups each carbon atom with its bonded hydrogen atoms
- CEach individual bond between atoms
- DThe molecular weight of the compound
60A cycloalkane is:
- AAn alkane that is a straight chain
- BAn alkane that contains a double bond
- CAn alkane that is a ring or cyclic structure
- DAn alkane that contains a triple bond
61An expanded structural formula is a type of structural formula that:
- AShows only the carbon atoms in a molecule
- BShows the arrangement of the atoms by drawing each bond in the hydrocarbon
- CGroups each carbon atom with its bonded hydrogen atoms
- DShows only the functional groups
62Hydration is an addition reaction in which:
- AWater is removed from a molecule
- BThe components of water, H— and —OH, bond to the carbon–carbon double bond to form an alcohol
- CHydrogen is added to a carbon–carbon triple bond
- DA molecule is broken down into smaller units
63A hydrocarbon is:
- AAn organic compound that contains only carbon and oxygen
- BAn organic compound that contains only carbon and hydrogen
- CAn inorganic compound with carbon
- DA compound that contains carbon, hydrogen, and nitrogen
64Hydrogenation is the addition of:
- AHydrogen (H₂) to the double bond of alkenes to yield alkanes
- BWater (H₂O) to the double bond of alkenes to yield alcohols
- COxygen (O₂) to alkanes to yield alkenes
- DNitrogen (N₂) to alkenes to yield nitriles
65The IUPAC system is a system for naming organic compounds devised by:
- AThe International Union of Physics and Chemistry
- BThe International Union of Pure and Applied Chemistry
- CThe International Organization for Standardization
- DThe International Society of Chemical Engineers
66A line-angle formula is a simplified structure that shows a zigzag line in which carbon atoms are represented as:
- ADots and dashes
- BThe ends of each line and as corners
- COnly the corners
- DCircles and squares
67The meta method of naming indicates substituents at carbons:
- A1 and 2 of a benzene ring
- B1 and 3 of a benzene ring
- C1 and 4 of a benzene ring
- D2 and 4 of a benzene ring
68A monomer is:
- AA large organic molecule that is repeated many times in a polymer
- BA small organic molecule that is repeated many times in a polymer
- CA non-organic molecule in a polymer
- DA molecule that cannot form polymers
69An organic compound is a compound made of carbon that typically:
- AHas ionic bonds, is polar, has high melting and boiling points, is soluble in water, and is nonflammable
- BHas covalent bonds, is nonpolar, has low melting and boiling points, is insoluble in water, and is flammable
- CHas metallic bonds, is nonpolar, has high melting and boiling points, is soluble in water, and is flammable
- DHas covalent bonds, is polar, has low melting and boiling points, is insoluble in water, and is nonflammable
70The ortho method of naming indicates substituents at carbons:
- A1 and 3 of a benzene ring
- B1 and 4 of a benzene ring
- C2 and 3 of a benzene ring
- D1 and 2 of a benzene ring
71The para method of naming indicates substituents at carbons:
- A1 and 2 of a benzene ring
- B1 and 3 of a benzene ring
- C1 and 4 of a benzene ring
- D2 and 4 of a benzene ring
72A polymer is:
- AA small molecule composed of repeating units
- BA very large molecule composed of many small, repeating monomer units
- CA molecule with a single repeating unit
- DA molecule with no repeating units
73Structural isomers are organic compounds in which identical molecular formulas have:
- AThe same arrangement of atoms
- BDifferent arrangements of atoms
- CThe same number of atoms
- DDifferent types of atoms
74A substituent is:
- AThe main carbon chain of a molecule
- BGroups of atoms such as an alkyl group or a halogen bonded to the main carbon chain or ring of carbon atoms
- CThe central atom in a molecule
- DThe functional group in a molecule
75A trans isomer is an isomer of an alkene in which similar groups in the double bond are:
- AOn the same side
- BOn opposite sides
- CIn a linear arrangement
- DIn a cyclic arrangement
Information
- Description
- 12.1 Organic Compounds 12.2 Alkanes 12.3 Alkanes with Substituents 12.4 Properties of Alkanes 12.5 Alkenes and Alkynes 12.6 Cis–Trans Isomers 12.7 Addition Reactions for Alkenes 12.8 Aromatic Compounds Vocab
- Author
- Mehdi Hassan
- Language
- English
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