Properties of Functional Groups

Question 1

True or False; alcohols are polar

Answer 1

True

Question 2

True or False; alcohols have low boiling points

Answer 2

False (They have higher boiling points than hydrocarbons
of similar molar mass)

Question 3

True or False; the boiling point of alcohols increases as the length of carbon chain
and OH groups increase

Answer 3

True

Question 4

Alcohols with one to four carbons are _____ in water.

Answer 4

Soluble

Question 5

Alcohols with five to six carbons are _____ in water.

Answer 5

Moderately soluble

Question 6

Alcohols with seven carbons or more are _____ in water.

Answer 6

Nearly insoluble

Question 7

True or False; Diols and triols are more water
soluble than alcohols with only a
single hydroxyl group

Answer 7

True

Question 8

True or False; All functional groups are polar except for Thiols

Answer 8

True

Question 9

True or False; Ethers have lower boiling points than alcohols of
similar molar mass due to lack of hydrogen
bonding.

Answer 9

True

Question 10

True or False; Ethers have lower boiling point than alkanes

Answer 10

False

Question 11

True or False; Ethers are less soluble in water and more soluble in organic solvents

Answer 11

True

Question 12

True or False; Thiols have high solubility in water

Answer 12

False (They have lower solubility)

Question 13

True or False; Ethers have lower boiling points than alkanes of similar molar mass.

Answer 13

False (They have higher)

Question 14

True or False; Solubility falls off dramatically as the carbon content of the carboxylic acid increases.

Answer 14

True

Question 15

True or False; Carboxylic acids have significantly higher
boiling points than other types of organic
compounds of comparable molecular
weight

Answer 15

True

Question 16

True or False; Boiling point of esters is higher than alcohol and carboxylic acid.

Answer 16

False (It is lower)

Question 17

True or False; Aldehydes boil at higher temperatures than alcohol.

Answer 17

False eyyy (They boil at lower temperatures)

Question 18

True or False; Ketones boil at lower temperatures than alcohol of similar molar mass because of weaker forces.

Answer 18

True

Question 19

True or False; In amines, boiling point decreases in the absence of hydrogens. The boiling point is highest in primary amines.

Answer 19

Korique

Question 20

True or False; Amines boil at higher boiling points than alkanes and ethers.

Answer 20

Trueeee

Question 21

True or False; Amides boil at lower temperature than amine and other hydrocarbon.

Answer 21

False (They boil at higher)

Question 22

True or False; generally, water solubility decreases as the length of the hydrocarbon portion increases

Answer 22

True

Question 23

Only how many carbons in aldehydes can guarantee solubility in water?

Answer 23

Five or fewer

Question 24

Which functional groups generally have low solubility in water?

Answer 24

Ethers and thiols

Question 24

Which functional groups generally have low solubility in water?

Answer 24

Ethers and thiols

Question 25

Which part of the structure of functional groups are water-fearing or hydrophobic?

Answer 25

Hydrocarbon part