Naming and Identifying Organic Compounds

What is the primary role of a heteroatom in an organic molecule?

• To make the molecule less reactive.

• To form the main carbon chain.

• To increase the molecule's reactivity and form functional groups.

• To replace hydrogen atoms only.

How is the structure of an alcohol similar to water?

• Both have two hydrogen atoms attached to an oxygen atom.

• One hydrogen atom in water is replaced by a carbon chain.

• Both are made entirely of carbon and hydrogen.

• Alcohols are just water molecules with extra oxygen.

What is a significant difference between ethanol and methanol?

• Ethanol is super poisonous, while methanol is mildly poisonous.

• Methanol is used in alcoholic drinks, while ethanol is used as wood alcohol.

• Ethanol is mildly poisonous, while methanol is super poisonous and can cause blindness or death.

• Both are equally safe for consumption in small amounts.

When naming organic compounds, which functional group has priority over double bonds, triple bonds, and other substituents?

• Double bonds

• Triple bonds

• Alcohol group

• Substituents

How are ethers typically named using their trivial name?

• By naming the carbon chains on either side of the oxygen, adding '-yl' to each, ordering alphabetically, and then adding 'ether'.

• By counting the total number of carbons and adding the suffix '-oxy'.

• By naming the longest carbon chain first, followed by 'ether'.

• By using the IUPAC rules for alcohols.

What is the main difference between an aldehyde and a ketone?

• An aldehyde has a carbon chain on both sides of a carbonyl group, while a ketone has it on only one side.

• An aldehyde has a carbon chain on only one side of a carbonyl group, while a ketone has it on both sides.

• Aldehydes contain a hydroxyl group, while ketones do not.

• Ketones have a triple bond, while aldehydes have a double bond.

What is the systematic (IUPAC) name for a ketone with a three-carbon chain and a carbonyl group on the second carbon?

• Propanal

• Propan-2-one

• Butanone

• Pentanone

Which of the following functional groups has the highest priority when naming organic compounds?

• Alcohols

• Ketones

• Carboxylic acids

• Aldehydes