MCAT Organic Chemistry Questions and
Answers | Latest Update | 2024/2025 |
100% Verified
What is the product of the oxidation of a primary alcohol?
The product is an aldehyde. Further oxidation yields a carboxylic acid.
What is the primary reagent used for the reduction of ketones to s...
MCAT Organic Chemistry Questions and
Answers | Latest Update | 2024/2025 |
100% Verified
What is the product of the oxidation of a primary alcohol?
✔✔The product is an aldehyde. Further oxidation yields a carboxylic acid.
What is the primary reagent used for the reduction of ketones to secondary alcohols?
✔✔The primary reagent is sodium borohydride (NaBH₄) or lithium aluminum hydride (LiAlH₄).
What is the characteristic reaction of a carboxylic acid with an amine?
✔✔The reaction forms an amide and water, known as amidation.
What is the main feature of a Grignard reagent?
1
,✔✔A Grignard reagent features a carbon-magnesium bond (R-MgX) and is highly reactive with
electrophiles.
What is the role of a Lewis acid in a chemical reaction?
✔✔A Lewis acid accepts an electron pair from a Lewis base during the reaction.
What is the difference between an electrophile and a nucleophile?
✔✔An electrophile is an electron-deficient species that seeks electrons, while a nucleophile is an
electron-rich species that donates electrons.
What does "reduction" mean in the context of organic chemistry?
✔✔Reduction refers to the process of gaining electrons or decreasing the oxidation state of a
molecule, often involving the addition of hydrogen or the removal of oxygen.
What is the result of the reaction between an alkene and ozone followed by zinc?
2
,✔✔The result is the formation of aldehydes or ketones, depending on the specific alkene and
conditions.
What is the purpose of using a protecting group in organic synthesis?
✔✔A protecting group is used to temporarily mask a reactive functional group to prevent it from
participating in unwanted reactions during the synthesis process.
What does "electrophilic aromatic substitution" entail?
✔✔Electrophilic aromatic substitution involves the replacement of a hydrogen atom on an
aromatic ring with an electrophile, such as in nitration or halogenation reactions.
What is the general formula for an alkene?
✔✔The general formula for an alkene is CₙH₂ₙ.
What is the main product of the reaction between an alkene and bromine?
3
, ✔✔The main product is a dibromoalkane.
What is the characteristic functional group of an alcohol?
✔✔The characteristic functional group of an alcohol is the hydroxyl group (-OH).
What type of reaction occurs when an alcohol reacts with a carboxylic acid?
✔✔The reaction is known as esterification, producing an ester and water.
What is the difference between an aldehyde and a ketone?
✔✔An aldehyde has a carbonyl group (C=O) bonded to at least one hydrogen atom, while a
ketone has a carbonyl group bonded to two carbon atoms.
What type of isomerism is exhibited by compounds with the same molecular formula but
different connectivity of atoms?
4
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