Properties of Alcohols and Phenold

Question 1

Can be though of as organic derivatives in which one or both hydrogen are replaced with organic parts

Answer 1

Alcohols, phenols, and ethers

Question 2

All three classes of compounds have nearly the same geometry as

Answer 2

Water

Question 3

What are the bond angles of C-O-H or C-O-C, __ in methyl, __ in dimethyl ether, and the oxygen atoms are ___

Answer 3

Approximately tetrahedral; 109° ;112°; sp3 hybridized

Question 4

Like water, alcohols and phenols have

Answer 4

Higher boiling points

Question 5

Alcohols and phenols have high BP because

Answer 5

They form hydrogen bonds

Question 6

The positively polarized OH hydrogen of one molecule is attracted ___ ,
resulting in a ___ holds the molecules
together.

Answer 6

-to a lone pair of electrons on the negatively polarized oxygen of another molecule
-weak force that

Question 7

Like water, alcohols and phenols

Answer 7

Both weakly basic and weakly acidic

Question 8

Alkoxide named replacing -ane with -oxide suffix

Answer 8

Methane - methoxide

Question 9

Adding -ate suffix to the name of the alcohol

Answer 9

Methanol - methanolate

Question 10

Alkyl groups make alcohol

Answer 10

Wesker acid

Question 11

The more easily the alkoxide ion is solvated by water the more

Answer 11

It’s formation is energetically favored

Question 12

Steric effects are

Answer 12

Important

Question 13

Phenols are ___ and are therefore soluble in dilute aqueous __

Answer 13

More acidic than alcohols; NaOH

Question 14

Why are phenols more acidic than alcohols

Answer 14

Phenoxide anion is resonance -stabilized by the aromatic

Question 15

___ increases the stability of the phenoxide anion and thus increase the tendency of the corresponding phenol to __

Answer 15

Sharing negative charge over the ring; dissociate

Question 16

A resonance -stabilized phenoxide us more stable than

Answer 16

Alkoxide ion