Term
| Catalytic reduction of an alkene is syn stereoselective. (5.7) |
|
Definition
|
|
Term
| Borane, BH3, is a Lewis acid. (5.5) |
|
Definition
|
|
Term
| All electrophiles are positively charged. (5.3) |
|
Definition
|
|
Term
| Catalytic hydrogenation of cyclohexane gives hexane. (5.7) |
|
Definition
|
|
Term
| A rearrangement will occur in the raction of 2-methyl-2pentene with HBr. (5.4) |
|
Definition
|
|
Term
| All nucleophiles are negatively charged. (5.3) |
|
Definition
|
|
Term
| In hydrocarbon, BH3 behaves as an electrophile. (5.5) |
|
Definition
|
|
Term
| In catalytic hydrogenation of an alkene, the reducing agent in the transition metal catalyst. (5.7) |
|
Definition
|
|
Term
| Alkene addition reactions involve breaking a pi bond and forming two new sigma bonds in its place. (5.3) |
|
Definition
|
|
Term
| When ozone is reacted with an alkene followed by treatment with dimethylsulfide, the final product will contain two carbonyl groups for every C-C double bond present in the original alkene. (5.6) |
|
Definition
|
|
Term
| The foundation for Markovnikov's tole is the relative stability of carbocation intermediates. (5.3) |
|
Definition
|
|
Term
| Acid-catalyzed hydration of an alkene is regioselective. (5.3) |
|
Definition
|
|
Term
| Water adds twice to an alkyne; the first molecule of water adds to form an enol, followed by a second molecule of water to form a ketone or an aldehyde. (5.10) |
|
Definition
|
|
Term
| The mechanism for addition of HBr to an alkene involves one transition state and two reactive intermediates. (5.3) |
|
Definition
|
|
Term
| Hydroboration of an alkene is regioselective and stereoselective. (5.5) |
|
Definition
|
|
Term
| According to the mechanism given in the text for acid-catalyzed hydration of an alkene, the -H and -OH added to the double bond both arises from the same molecule of H2). (5.3) |
|
Definition
|
|
Term
| Acic-catalyzed addition of H2O to an alkene is called hydration. (5.3) |
|
Definition
|
|
Term
| If a compound fails to react with Br2, it is unlikely that the compound contains a carbon-carbon double bond. (5.3) |
|
Definition
|
|
Term
| The conversion of ethylene, CH2=CH2, to ethanol, CH3Ch2Oh. is an oxidation reaction. (5.3) |
|
Definition
|
|
Term
| Addition of Br2 and Cl2 to cyclohexene is anti-stereoselective. (5.3) |
|
Definition
|
|
Term
| A carbocation is a carbon that has four bonds to it and bears a positive charge. (5.3) |
|
Definition
|
|
Term
| The geometry about the positively charged carbon of a carbocation is best describes as trigonal planar. (5.3) |
|
Definition
|
|
Term
| The carbocation derived by proton transfer to ethylene is CH3CH2+. (5.3) |
|
Definition
|
|
Term
| Alkyl carbocations are stabilized by the electron withdrawing inductive effect of the positively charged carbon of the carbocation. (5.3) |
|
Definition
|
|
Term
| The oxygen atom of an oxonium ion obeys the octet rule. (5.3) |
|
Definition
|
|
Term
| Hydroxide ion (HO-) is a stronger base than amide ion (h2N-). (5.*0 |
|
Definition
|
|
Term
| Markovinov's rule refers to the regioselectivity of addition reactions to carbon-carbon double bond. (5.3) |
|
Definition
|
|
Term
| A rearrangement, in which a hydride ion shifts, will occur in the reaction of 3-methyl-1-pentene with HCl. (5.4) |
|
Definition
|
|
Term
| Acid-catalyzed hydration of 1-butene gives 1-butanol, and acid-catalyzed hydration of butene gives 2-butanol. (5.3) |
|
Definition
|
|
Term
| Alkynes are always more acidic than alkenes. (5.8) |
|
Definition
|
|
Term
| Alkenes are good starting materials for reaction in which it is necessary to form a C-C bond. (5.9) |
|
Definition
|
|
Term
| Alkynes can be reduced to cis alkenes but not to trans alkenes. (5.11) |
|
Definition
|
|
