Organic Chemistry

Question 1

What is the general formula for alkanes?

Answer 1

C_nH_(2n+2)

Question 2

True or False: Alkenes contain at least one carbon-carbon double bond.

Answer 2

True

Question 3

What type of reaction involves the addition of hydrogen to an alkene?

Answer 3

Hydrogenation

Question 4

Fill in the blank: The functional group characteristic of alcohols is the ______ group.

Answer 4

hydroxyl

Question 5

What is the IUPAC name for CH3-CH2-CH2-CHO?

Answer 5

butanal

Question 6

Which type of isomerism is exhibited by compounds with the same molecular formula but different connectivity?

Answer 6

Structural isomerism

Question 7

What is the primary product when an alkene undergoes hydrohalogenation?

Answer 7

Haloalkane

Question 8

True or False: Aromatic compounds are characterized by a planar ring structure with delocalized pi electrons.

Answer 8

True

Question 9

What is the name of the reaction that converts an alcohol to an alkene?

Answer 9

Dehydration

Question 10

Identify the hybridization of carbon in ethyne (C2H2).

Answer 10

sp

Question 11

What is the main characteristic of nucleophiles?

Answer 11

They are electron-rich species that donate electrons.

Question 12

What is the product of the complete combustion of hydrocarbons?

Answer 12

Carbon dioxide and water

Question 13

Fill in the blank: The ______ effect describes the electron-withdrawing effect of electronegative atoms or groups.

Answer 13

inductive

Question 14

What type of reaction is characterized by the transfer of electrons between species?

Answer 14

Redox reaction

Question 15

What is the IUPAC name for the compound with the formula C3H6O?

Answer 15

Propanal or cyclopropanol (depending on structure)

Question 16

True or False: A chiral molecule is one that cannot be superimposed on its mirror image.

Answer 16

True

Question 17

What is the term for the energy required to break a bond in a molecule?

Answer 17

Bond dissociation energy

Question 18

Which reaction mechanism involves a carbocation intermediate?

Answer 18

SN1 mechanism

Question 19

Fill in the blank: The ______ rule states that the most stable product is formed preferentially in a reaction.

Answer 19

Zaitsev’s

Question 20

What is the product of the reaction between an alcohol and a carboxylic acid?

Answer 20

Ester

Question 21

What type of reaction involves the replacement of one functional group by another?

Answer 21

Substitution reaction

Question 22

What is the key feature of a Grignard reagent?

Answer 22

It contains a carbon-magnesium bond.

Question 23

True or False: The pKa value indicates the strength of an acid; lower pKa means a stronger acid.

Answer 23

True

Question 24

What is the term for the stability of a molecule due to resonance?

Answer 24

Resonance stabilization

Question 25

What type of hydrocarbons can participate in electrophilic aromatic substitution?

Answer 25

Aromatic hydrocarbons

Question 26

Fill in the blank: The ______ test is used to differentiate between alkenes and alkanes.

Answer 26

Bromine