Organic Chemistry Quiz & Flashcards

Aromatic compounds are cyclic, planar, and have delocalized π electrons that follow Huckel's rule, unlike other options.

Hydrogenation involves the addition of hydrogen to alkenes, converting them to alkanes.

E2 reactions favor the formation of the most substituted alkene, known as the Zaitsev product.

Isopropanol is a secondary alcohol, where the hydroxyl group is attached to a carbon bonded to two other carbons.

The nucleophile donates an electron pair to form a new bond in a nucleophilic substitution reaction.

Ethanoic acid is the IUPAC name for acetic acid, based on the two-carbon structure.

Enantiomers are non-superimposable mirror images, differing in the spatial arrangement of atoms.

Meso compounds have an internal plane of symmetry and are achiral despite having stereocenters.

Ethene contains carbon atoms that are sp2 hybridized, allowing for the formation of a double bond.

Ketones have a carbonyl group where the carbon is bonded to two other carbon atoms.

Combustion is a typical reaction for alkanes, where they react with oxygen to produce carbon dioxide and water.

A Lewis acid is defined by its ability to accept an electron pair.

Grignard reagents are organomagnesium compounds with the general formula RMgX.

Glucose and fructose are structural isomers, differing in the connectivity of their atoms.

2,4-Dinitrophenylhydrazine reacts with carbonyl groups to form a yellow or orange precipitate.

Conjugated systems have alternating single and double bonds, allowing for electron delocalization.

Carboxylic acids typically have pKa values in the range of 4-5, indicating moderate acidity.

Fischer projections are used to represent molecules in 2D, especially for sugars and amino acids.

The reaction between an alcohol and an acid chloride produces an ester and hydrochloric acid.

In electrophilic aromatic substitution, the ortho and para positions are most reactive due to resonance stabilization.

Polymerization involves the joining of monomers to form large polymer chains.

Hydration involves the addition of water to an alkene to form an alcohol, often catalyzed by an acid.

A leaving group departs with an electron pair, making room for the nucleophile in substitution reactions.

A tertiary amine has a nitrogen atom bonded to three carbon-containing groups.

Hydrolysis of an ester involves breaking the ester bond to form an alcohol and a carboxylic acid.

Thiols contain a sulfhydryl group (-SH), distinguishing them from other functional groups.

A free radical contains an unpaired electron, making it highly reactive.

Lithium aluminium hydride (LiAlH4) is a strong reducing agent used to convert carboxylic acids to alcohols.

The stability of a carbocation is enhanced by greater substitution, which provides electron-donating effects.

Optical activity is the ability of chiral molecules to rotate plane-polarized light to a certain degree.

SN2 reactions occur in a single concerted step, where the nucleophile attacks as the leaving group departs.

Amide bonds have a carbonyl group directly bonded to a nitrogen atom, typical in proteins and peptides.

SN1 reactions involve a carbocation intermediate, unlike SN2 reactions which occur in one step.

Benzene is an example of an aromatic compound, characterized by a planar ring and delocalized π electrons.

Halogenation of an alkene results in the formation of a dihaloalkane through the addition of halogen atoms.

Nucleophilic substitution occurs when a nucleophile replaces a leaving group in an alkyl halide.

Carbenes are neutral species characterized by a divalent carbon atom with two non-bonding electrons.

The Zaitsev product is typically the most substituted, stable alkene formed during elimination reactions.

Phase transfer catalysts enhance the reactivity between reactants in different phases, such as organic and aqueous.

Diastereomers have different physical properties, unlike enantiomers, which are non-superimposable mirror images.

Grignard reagents act as nucleophiles, adding to electrophilic carbonyls to form alcohols and other products.

Acetals are characterized by two ether-like linkages, formed from aldehydes and alcohols.

Conjugated pi systems feature delocalized electrons spread across the system, enhancing stability and reactivity.

Dehydration involves the removal of water from an alcohol to form an alkene.

Zwitterions contain both positive and negative charges but are overall electrically neutral.

Esterification involves an alcohol reacting with an acid to form an ester and water.

Tautomeric pairs differ in the position of a proton and a double bond, often existing in equilibrium.

Ethers are characterized by an oxygen atom bonded to two carbon atoms, forming a C-O-C linkage.

A stereocenter is an atom bonded to four different groups, leading to chirality in molecules.

E1 reactions involve a two-step mechanism with carbocation formation followed by deprotonation to form a double bond.

Meso compounds are achiral due to an internal plane of symmetry, even though they have stereocenters.

Electrophiles seek electrons and are attracted to electron-rich sites in chemical reactions.

Prochiral molecules can become chiral with a single chemical transformation, such as changing one substituent.