2. Molecular Representations

Draw a Lewis structure, and classify each of the following compounds. The possible classifications are as follows: alcohol ether ketone aldehyde carboxylic acid alkene

(d) CH₃CH₂OCHCH₂

(e)

Classify the following hydrocarbons, and draw a Lewis structure for each one. A compound may fit into more than one of the following classifications:

alkane

alkene

alkyne

cycloalkane

cycloalkene

cycloalkyne

aromatic

hydrocarbon

(g)

(h)

(i)

Classify the following hydrocarbons, and draw a Lewis structure for each one. A compound may fit into more than one of the following classifications:

alkane

alkene

alkyne

cycloalkane

cycloalkene

cycloalkyne

aromatic

hydrocarbon

(d)

(e)

(f)

Classify the following hydrocarbons, and draw a Lewis structure for each one. A compound may fit into more than one of the following classifications:

alkane

alkene

alkyne

cycloalkane

cycloalkene

cycloalkyne

aromatic

hydrocarbon

a. (CH₃CH₂)₂CHCH(CH₃)₂

b. CH₃CHCHCH₂CH₃

c.. CH₃CCCH₂CH₂CH₃

a. How many primary carbons does each of the following compounds have?

b. How many secondary carbons does each one have?

c. How many tertiary carbons does each one have?

1.

Are the following compounds primary, secondary, or tertiary?

a.

b.

Identify the functional groups in each of the following molecules. [The number of functional groups has been given to assist you.]

(d) [Two]

Identify the functional groups in each of the following molecules. [The number of functional groups has been given to assist you.]

(b) [Two]

Identify the functional groups in each of the following molecules. [The number of functional groups has been given to assist you.]

(a) [Three]

When we begin studying reactive intermediates, the designation of substitution will be especially important. Label the following carbocations as 1° , 2°, 3°, or 4° or based on the carbon bearing the positive charge.

(c)

Given the line-angle drawings shown, answer the following questions:

(i) How many carbons are in each molecule?

(ii) How many hydrogens are at the circled carbon?

(iii) Is the indicated (→) carbon or 1° , 2°, 3°, or 4°?

(h)

Identify the functional groups in each of the following molecules. [The number of functional groups has been given to assist you.]

(c) [Three]

When we begin studying reactive intermediates, the designation of substitution will be especially important. Label the following carbocations as 1° , 2°, 3°, or 4° or based on the carbon bearing the positive charge.

(b)

Classify each hydrogen atom in the following compounds as primary (1°), secondary (2°), or tertiary (3°).

c. 2-methylbutane

d. cyclohexane

Label each hydrogen atom in the following compounds as primary (1°), secondary (2°), or tertiary (3°).

(e)

(f)