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Question 1

organic compound containing a carboxyl functional group.

Answer 1

A Carboxylic Acid

Question 2

important functional group that present C=O.

Answer 2

The carboxylic acids are the

Question 3

citric acid, lactic acid or fumaric acid are produced from by

Answer 3

fermentation

Question 4

The general formula of a carboxylic acid is

Answer 4

R-COOH

Question 5

Carboxylic Acid has a

Answer 5

double connection with an oxygen atom and a single bond with a hydroxyl group.

Question 6

carboxylic acid contains a

Answer 6

hydroxyl group attached to a carbonyl carbon.

Question 7

carboxylic acid contains a hydroxyl group attached to a carbonyl carbon. Due to

Answer 7

the electronegativity of the oxygen

Question 8

The carboxylate ion, produced from

Answer 8

the removal of a proton from the carboxyl group

Question 9

Carboxylic acid molecules are polar due to

Answer 9

the presence of two electronegative oxygen atoms

Question 10

Carboxylic acid participate in hydrogen bonding due to

Answer 10

the presence of the carbonyl group (C=O) and the hydroxyl group

Question 11

The solubility of compounds containing the carboxyl functional group in water depends on

Answer 11

on the size of the compound

Question 12

The boiling point of a carboxylic acid is generally

Answer 12

higher than that of water

Question 13

carboxylic acid can easily be halogenated via

Answer 13

the Hell-Volhard-Zelinsky reaction.

Question 14

Fatty acids that are essential to human beings are made up of carboxylic acids. Examples include

Answer 14

omega-6 and omega-3 fatty acids.

Question 15

Higher fatty acids are also used in the

Answer 15

manufacture of soaps.

Question 16

Hexanedioic acid is used in the

Answer 16

manufacture of nylon-6,6.

Question 17

What foods contain carboxylic acids

Answer 17

In plants and animals,

citric acid in citrus fruits, such as oranges and lemons

Question 18

The acid-catalyzed esterification of carboxylic acids with alcohols to
give esters is termed

Answer 18

Fischer esterification

Question 19

The direct conversion of a carboxylic acid to an amide is difficult because

Answer 19

amines are very basic

Question 20

aromatic to refer to the class of compounds that contain

Answer 20

six-membered benzene-like rings with three double bonds.

Question 21

benzene is much less reactive than

Answer 21

typical alkenes and fails to undergo typical alkene addition reactions.

Question 22

trophile with a benzene ring has a

Answer 22

relatively high activation energy and is rather slow.

Question 23

Electrophilic aromatic halogenations also occur in the biological synthesis

Answer 23

In humans, the best-known example occurs in the thyroid gland

Question 24

Aromatic (aryl) halides such as chlorobenzene don’t react. In addition, Friedel–Crafts reactions don’t succeed

Answer 24

on aromatic rings that are already substituted by the groups NO2, CN, SO3H, or COR

Question 25

In aromatic nitration, for instance, the presence of an OH substituent makes

Answer 25

the ring 1000 times more reactive than benzene,

Question 26

while an NO2 substituent makes the ring more than

Answer 26

10 million times less reactive.

Question 27

Aldehydes and Ketones have a double bond functional group. Because

Answer 27

of the greater electronegativity of oxygen

Question 28

aldehydes and ketones have larger molecular dipole moments (D) than

Answer 28

do alkenes.

Question 29

presence of oxygen with its non-bonding electron pairs makes aldehydes and ketones hydrogen-bond

Answer 29

acceptors, and should increase their water solubility relative to hydrocarbons.

Question 30

is the simplest aldehyde

Answer 30

Formaldehyde

Question 31

is the smallest ketone.

Answer 31

Acetone

Question 32

Acetaldehyde is largely used for

Answer 32

for the production of acetic acid and pyridine derivatives.

Question 33

Benzaldehyde is used in

Answer 33

perfumes, cosmetic products, and dyes.

Question 34

Formaldehyde is a gas. With 40% solution in water, it forms Formalin which is used in

Answer 34

preserving biological specimens.

Question 35

Formaldehyde is used in

Answer 35

embalming, tanning, preparing glues and polymeric products, as germicides, insecticides, and fungicides for plants

Question 36

In the household, acetone is used as

Answer 36

nail paint remover and paint thinner.

Question 37

In medicine, acetone used in

Answer 37

chemical peeling and for acne treatments.

Question 38

Methyl ethyl ketone (MEK), chemically butanone, is a

Answer 38

common solvent. It is used in the production of textiles, varnishes, plastics, paint remover, paraffin