Organic Compound Nomenclature Part 1

Question 1

meaning of IUPAC

Answer 1

International Union of Pure and
Applied Chemistry

Question 2

a method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC). It is published in the Organic Chemistry Nomenclature.

Answer 2

IUPAC Nomenclature of Organic Chemistry

Question 3

involves a nonsystematic approach to the naming of organic compounds. This nomenclature system is limited to
only a few compounds in each specific group.

Answer 3

trivial nomenclature system

Question 4

The _____________ indicates the number of carbons in the longest continuous chain.

Answer 4

parent name

Question 5

The ______ indicates what functional group is present

Answer 5

suffix

Question 6

The _________ tells us the identity, location, and number of substituents attached to the
carbon chain.

Answer 6

prefix

Question 7

saturated hydrocarbons in
which the carbon atoms are held
together by single bonds.

named by adding the suffix
-ane to the prefixes.

Answer 7

alkanes

Question 8

formula of alkanes

Answer 8

CnH2n+2

Question 9

sequence of prefixes (1-10 carbon atoms)

Answer 9

meth, eth, prop, but, pent, hex, hept, oct, non, dec

Question 10

If there are two chains of equal length, what would you pick as the parent carbon chain

Answer 10

the chain with more substituents

Question 11

what do you call the branches attached to the parent chain

Answer 11

substituents

Question 12

formed by removing one hydrogen from the alkane chain. The removal of this hydrogen
results in a stem change from -ane to -yl

Answer 12

alkyl groups

Question 13

Number the atoms in the carbon chain to give the first substituent the____________

Answer 13

lower number

Question 14

Number the atoms in the carbon chain to give the first substituent the____________

Answer 14

lower number

Question 15

Alphabetize the names of the substituents, ignoring all prefixes
except _____

Answer 15

iso

Question 16

When numbering a carbon chain results in the same numbers from either end of the chain, assign the lower number ___________ to the first substituent

Answer 16

alphabetically

Question 17

Separate numbers by _________ and separate numbers from
letters by ____________

Answer 17

commas, hyphens

Question 18

Separate numbers by _________ and separate numbers from
letters by ____________

Answer 18

commas, hyphens

Question 19

If the number of carbons in the ring is greater than or equal to the number of carbons in the longest
chain, the compound is named as a ___________. if not, it becomes a ______________

Answer 19

cycloalkane, substituent

Question 20

class of hydrocarbons unsaturated compounds with at least one carbon-to-carbon double
bond. They are more reactive than alkanes due to the presence of the double bond.

are named by adding the suffix -ene after the
number where the double bond is located.

Answer 20

alkenes

Question 21

another name for alkenes

Answer 21

olefins

Question 22

formula for alkenes

Answer 22

CnH2n

Question 23

In alkenes and alkynes, Number the carbon chain to give the double bond/triple bond the ______ number. The _______ of the two numbers designating the carbon atoms of the double/triple bond is used as the double/triple bond locator.

Answer 23

lower, smaller

Question 24

describes two nonhydrogen substituents that are on the same side of the double bond

Answer 24

cis alkene

Question 25

describes two nonhydrogen substituents that are on opposite sides of the double bond

Answer 25

trans alkene

Question 26

Compounds with two double bonds are named as _______, those with three are named ________, and so forth also applies to alkynes

Answer 26

dienes, trienes

Question 27

Compounds that contain both a double bond and a triple bond are named ______ (The 'e' in the alkene name is being omitted.) If the double bond and triple bonds are equidistant, the chain is numbered to give the ______ bond the lower number

Answer 27

enyne, triple bond

Question 28

Compounds that contain both a double bond and a hydroxyl group are named _______ and the chain (or ring) is numbered to give the -OH group the lower number. (The 'e' in the alkene name is being omitted.)

Answer 28

alkenols

Question 29

(true/false) In naming anything with the cyclo prefix, the double bond/only substituent/triple bond is located between C1 and C2, and the “1” is omitted in the name.

Answer 29

true

Question 30

a class of hydrocarbon unsaturated compounds with at least one carbon-to-carbon triple bond. named by adding the suffix -yne after the number where the double bond is located. (Based on updated IUPAC naming system)

Answer 30

alkynes

Question 31

formula for alkynes

Answer 31

CnH2n-2

Question 32

a group of chemical compounds comprised of an alkane with one or more hydrogens replaced by a halogen atom (fluorine, chlorine, bromine, or iodine).

Answer 32

haloalkanes/alkyl halides (for common name)

Question 33

____________ contain the hydroxyl functional group (-OH), bonded to a carbon atom of an alkyl or substituted alkyl group.

Answer 33

alcohols

Question 34

formula of alcohol

Answer 34

R-OH

Question 35

classification of alcohols is one in which the carbon atom with the OH group is attached to one other carbon atom. Its general formula is ______

Answer 35

A primary (1°) alcohol (RCH2OH)

Question 36

classification of alcohols is one in which the carbon atom with the OH group is attached to two other carbon atoms. Its general formula is _________

Answer 36

A secondary (2°) alcohol (R2CHOH)

Question 37

classification of alcohols is one in which the carbon atom with the OH group is attached to three other carbon atoms. Its general formula is _________

Answer 37

A tertiary (3°) alcohol (R3COH)

Question 38

classification of alcohols is one in which the carbon atom with the OH group is attached to two other carbon atoms. Its general formula is _________

Answer 38

A secondary (2°) alcohol (R2CHOH)

Question 39

Compounds with two hydroxyl groups are called

Answer 39

diols or glycols (for common names) (triols for 3)

Question 40

common name for 1,2,3-propanetriol

Answer 40

glycerol

Question 41

When an OH group is bonded to a ring, the ring is numbered beginning with the _____________

Answer 41

-OH group (1 is also emitted)