exam 2 (ch. 4, 5, & 6) review

which of the following compounds is 2,3,4-trimethylpentane?

(CH3)2CHCH(CH3)CH(CH3)2

how many alkanes of the formula C6H14 have a quaternary carbon atom?

1

how many possible constitutional isomers are possible for the formula C4H10?

2

Give the IUPAC name for

3,3-dimethyl-1-butyne

What is the correct IUPAC name for the following compound?

3-bromocyclopentene

A correct IUPAC name for the following compound is:

4-bromo-3-methyl-1-butene

what is the IUPAC name of the following compound?

4-ethyloctane

Indicate whether the methyl group in this methylcyclohexane is axial or equatorial.

Axial

Identify the cis-, trans- relationship of the two groups, and identify the axial/equatorial nature of the groups. More than one answer must be indicated for full credit for this question.

Both bromine atoms are in an axial conformation. This compound should be properly called trans-1,4-dibromocyclohexane.

What would be the relative positions of the substituents in the most stable conformation of trans-1,2-dimethylcyclohexane?

Both methyl groups are equatorial.

Identify the cis, trans- relationship of the two groups, and identify the axial/equatorial nature of the groups. More than one answer must be indicated for full credit.

C.) Both bromine atoms are in an equatorial conformation. E.) This compound should be properly called trans-1,2-dibromocyclohexane.

Which of the following cycloalkanes has the greatest amount of ring strain?

Cyclopropane

Indicate whether the methyl group in this methylcyclohexane is axial or equatorial.

Equatorial

Which of the following compounds is isobutylcyclohexane?

answer a

which of the following compounds is propylcycloheptane?

answer a

Which of the following drawings represents ethane in the staggered conformation? More than one answer may be correct.

answer a & b

Select the correct Newman projection(s) for the highest energy conformation of hexane.

answer b

Which of the following drawings represents ethane in the eclipsed conformation? More than one answer may be correct.

answer c & d

which of the following compounds is sec-butylcyclopentane?

answer e

how are alkanes described when some or all of the carbon atoms are arranged in a ring?

cycloalkanes

what is the IUPAC name of the following compound?

cyclooctane

what is the IUPAC name for CH3(CH2)4CH3?

hexane

what is the IUPAC name for CH3CH2CH2CH2CH2CH2CH2CH2CH3

nonane

Which of the following alkanes has the highest melting point?

pentane