Chemistry chapter 12

Enter the IUPAC name of the following cycloalkane

1-ethyl-3-isopropylcyclopentane

Enter the name of the following cycloalkane

1-ethyl-4-methylcyclohexane

A. Isomers B. Different molecules C. The same molecule

A

A. The same molecule B. Isomers C. Different molecules

A

Alkanes are_____in water and _______ than water. A. Insoluble, less dense B. Soluble, more dense C. Soluble, less dense D. Insoluble, more dense

A

In straight-chain alkanes, the carbon atoms on each end of the molecule always form bonds with ________atoms of hydrogen; the carbons within the molecule always form bonds with _______ hydrogen atoms. A. 3;2 B. 3;3 C. 4;2 D. 4;4 E. 2;2

A

The carbon atom marked with * is a _______ carbon atom. A. Tertiary B. Quaternary C. Primary D. Secondary E. None of these

A

The name of the following structure will include the following parent name A. Butane B. Pentane C. Hexane D. Octane E. Ethane

A

What is the IUPAC name of the compound shown? A. 3,5-dimethyloctane B. 6-ethyl-4-methylheptane C. 4,6-dimethyloctane D. 2-ethyl-4-methylheptane E. 4-methyl-2-ethylheptane

A

What is the relationship between the following molecules? A. They are identical B. They are isomers of each other C. They are different molecules which are not isomers D. None of the above

A

What is wrong with the following structures? A. All three structures have a carbon atom with five bonds B. All three structures have a hydrogen atom with two bonds C. All three structures have a carbon atom with five bonds and a hydrogen atom with two bonds

A

Which functional group does not contain oxygen? A. Amine B. Ester C. Alcohol D. Ketone E. Carboxylic acid

A

A. Different molecules B. The same molecule C. Isomers

B

A. The same molecule B. Different molecules C. Isomers

B

A. The same molecule B. Isomers C. Different molecules

B

The carbon skeleton of an alkane is shown below. How many hydrogen atoms are bonded to the carbon marked with a *? A. 0 B. 1 C. 2 D. 3 E. 4

B

The functional group illustrated below is an A. Amine B. Amide C. Ether D. Ester E. Alcohol

B

The functional group illustrated by R-OH is an A. Aldehyde B. Alcohol C. Alkyl D. Ester E. Ether

B

What is the IUPAC name of the molecule shown? A. 2,3-dimethylcyclobutane B. 1,2-dimethylcyclobutane C. Cyclohexane D. Dimethylcyclobutane E. 3,4-dimethylcyclobutane

B

Which atom is least likely to form a polar covalent bond with carbon? A. F B. H C. O D. CI E. N

B

Which of the following is a hydrocarbon family? A. Thiol B. Alkyne C. Amine D. Alcohol

B

Which of the statements about the behavior of the element carbon in organic molecules is incorrect? A. Carbon can be involved in polarcovalent bonds B. When carbon forms four single bonds, the bond angles are 90° C. Carbon can form single, double, or triple bonds with other carbon atoms D. In addition to other carbon atoms, carbon is likely to form bonds with hydrogen, nitrogen, or oxygen E. Carbon always forms four bonds

B

How many hydrogen atoms are present in the molecule shown? A. 14 B. 6 C. 12 D. 16 E. 18

C

If you had only one chlorine allowed on pentane (C5H12) at a time, how many isomers would be possible? A. 4 B. 2 C. 3 D. 1 E. 5

C

The functional group illustrated below is an A. Ether B. Alcohol C. Aldehyde D. Alkyl E. Ester

C

The functional group illustrated by R-O-R' is an A. Aldehyde B. Alkyl C. Ether D. Alcohol E. Ester

C

Which of the following statements about organic molecules is correct? A. Organic molecules are nonpolar molecules B. Organic molecules only have single bonds C. Most organic molecules are insoluble in water D. Organic molecules are hydrogen compounds

C

Which one of the following statements describes alkane properties correctly? A. Most alkanes are soluble in water B. Alkanes are generally denser than water C. Boiling points of straight-chain alkanes increase with molecular size D. Some alkanes have dipole-dipole forces as their intermolecular force

C

Two or more compounds with the same molecular formula but with the atoms connected differently are referred to as A. Branched alkanes B. Functional groups C. Conformations D. Constitutional isomers E. Normal alkanes

D

Which family of organic compounds does not contain any multiple bonds? A. Aldehydes B. Ketones C. Alkynes D. Alkyl Halides E. Alkenes

D

Which of the following is an isomer of the molecule shown below? A. CH3CH2CH3 B. CH3CH2CH2CH2CH2CH3 C. CH3CH(CH3)CH2CH3 D. CH3CH2CH2CH2CH3

D

A correct name for the following compound is _______. A. 2-bromo-1-ethyl-2-methylcyclopropane B. 1-bromo-1-ethyl-2-methylcyclopropane C. 1-bromo-3-ethyl-1-methylcyclopropane D. 1-bromo-3-ethyl-3-methylcyclopropane E. 1-bromo-2-ethyl-1-methylcyclopropane

E

What is the IUPAC name of the compound shown? A. 2-ethyl-2-methylpentane B. 2-methyl-2-propylbutane C. 2,2-ethyl-methylpentane D. Isooctane E. 3,3-dimethylhexane

E