Chapter 11: Unsaturated Hydrocarbons (alcohols,ketones,etc)

Question 1

______ hydrocarbons have the maximum number of hydrogen atoms attached to each carbon atom

Answer 1

Saturated

Question 2

______ hydrocarbons are alkanes and cycloalkanes with single c-c bonds

Answer 2

Saturated

Question 3

_______ hydrocarbons have fewer hydrogen atoms attached to the carbon chain than alkanes

Answer 3

Unsaturated

Question 4

_____ hydrocarbons are alkenes with double bonds

Answer 4

unsaturated

Question 5

______ hydrocarbons are alkynes with triple bonds

Answer 5

Unsaturated

Question 6

Alkenes have ____ bonds

Answer 6

double

Question 7

Alkynes have _____

Answer 7

triple

Question 8

Alkane is a ____ bond. Alkyne is a ____ bond, and Alkene is a ____ bond

Answer 8

Single, triple double

Question 9

According to the VSEPR theory, the three groups bonded to carbon atoms in a double bond are at ____ degree angles

Answer 9

120

Question 10

According to the VSEPR theory, ____ are flat because the atoms in a double bond all lie in the same plane

Answer 10

Alkenes

Question 11

According to the VSEPR theory, the two groups bonded to each carbon in a _____ bond are at 180 degree angles

Answer 11

triple

Question 12

Ethylene is the simplest ____, with the molecular formula _____

Answer 12

alkene, C2H4 (ON TEST)

Question 13

C2H4 is _______, in the functional group _____

Answer 13

ethylene, functional group alkene

Question 14

Ethylene has two carbon atoms connected by a ____ bond, and has two atoms bonded to each C atom

Answer 14

double

Question 15

Ethylene is flat, with all __ and __ atoms in the same plane

Answer 15

C and H

Question 16

Ethylene, in the function group ______, is a plant hormone used to accelerate the ripening of fruits

Answer 16

Alkene

Question 17

Ethyne, more commonly known as ______, is the simplest alkyne

Answer 17

Acetylene (ON TEST)

Question 18

What is the simplest alkyne?

Answer 18

Acetylene

Question 19

Naming Alkenes and Alkynes: When the carbon chain has four or more C atoms, you start from left to right or right to left depending on….

Answer 19

Which one will give you the lowest number to the first carbon in the double or triple bond. Ch2=CH-CH2-CH3 is 1-butene and not 4-butene because going from left to right starts the name at 1 instead of 4

Question 20

CH3–CH=CH-CH3 is 2-butene because…

Answer 20

because whether you start from left or right, the double bond is still the second carbon in the chain, and it’s butene because there are four carbon atoms and one double bond.

Question 21

CH3–CH2-C(triple bond)C-CH3 is 2-pentyne because….

Answer 21

Starting from right to left, the double bond starts with the second carbon atom. Pentyne because there are five carbon atoms and one triple bond.

Question 22

Video for naming alkanes:

Answer 22

https://www.khanacademy.org/science/organic-chemistry/bond-line-structures-alkanes-cycloalkanes/naming-alkanes/v/naming-simple-alkanes

Question 23

CH2=CH-CH-CH3 in IUPAC name is:

Answer 23

1-butene

Question 24

CH3-C (triple bond)C-CH3 in IUPAC name is:

Answer 24

2-butyne

Question 25

Cis and trans isomers in an alkene are basically just…

Answer 25

Cis if the isomers are on the same side. If the isomers are flipped, they are trans. “cis-3-hexene” or “trans-3-hexene” ON TEST

Question 26

In cis-trans isomers, there is no rotation around the ____ bond in alkenes

Answer 26

double

Question 27

In a cis isomer, the alkyl groups are next to each other whether on top or on bottom. True or false?

Answer 27

True

Question 28

In a trans isomer, the alkyl groups are switched and each one is placed next to an H atom. True or false?

Answer 28

True

Question 29

In hydrogenation, what happens to the double bond?

Answer 29

becomes a single bond due to adding H2

Question 30

An alkene is converted to an alcohol with which type of addiction reaction?

Answer 30

Hydration, because the acid H+ catalyst is required and the water (H-OH) adds to a double bond, where the H atom bonds to one of the C’s in the C=C and the OH bonds to the other =C.

Question 31

What type of compound is Benzene?

Answer 31

Aromatic compound

Question 32

Describe benzene’s structure

Answer 32

a ring of 6 C atoms and six H atoms. A flat ring structure drawn with three double bonds

Question 33

Which compound is a flat ring structure with three double bonds, and represented by two structures because the electrons are shared among all the C atoms?

Answer 33

Benzene

Question 34

Aromatic compounds are named with ____ as the parent chain

Answer 34

benzene (methyl benzene…chlorobenzene)

Question 35

Methylbenzene is also called ______

Answer 35

Toluene

Question 36

Benzenamine is also called ______

Answer 36

aniline

Question 37

The OH acid Hydroxybenzene is most commonly known as _____

Answer 37

phenol (ON TEST. six ring carbon shape with a triple bond and one extended OH)