Reactions of alkenes quizlet. Substitution reaction 4.
Reactions of alkenes quizlet . Study with Quizlet and memorize flashcards containing terms like Hydrogenation, hydrohalogenation, halogenation, halohydrin formation, hydration, oxymercuration Study with Quizlet and memorize flashcards containing terms like What are the 7 Alkene reactions?, Catalytic Hydrogenation Add. - used to reduce alkenes into alkanes - syn stereoselctivity - without rearrangement - stereospecific (Z alkenes give different products than alkene) - if one side is more hindered, the reaction is stereoselective for the less hindered side - Reagents: H2, metal catalyst; - Conditions: 25 C, 3 atm Mechanism 1) H & alkene are adsorbed on metal Study with Quizlet and memorize flashcards containing terms like hydrogenation, halogenation, halohydrin formation and more. Study with Quizlet and memorize flashcards containing terms like What type of bonds are present in alkenes?, What is the full name of this reaction?, Stage 1 and more. is an addition reaction in which H2O is incorporated into molecules of an organic compound; Alkene hydration requires a small amount of H2SO4 (sulfuric acid) as catalyst Reactions of Alkenes When the alkene involved in a hydrohalogenation or hydration reaction is itself unsymmetrical, more than one product is possible Study with Quizlet and memorize flashcards containing terms like Addition of HX, Acid-Catalyzed Hydration, Addition of Bromine and Chlorine and more. The four electrons in the carbon double bond make it electron dense so electrophiles are attracted to it and can form a bond by using two of the four electrons in the double bond. There are only two beta protons. The result is adding two OH groups two the original alkene in an Anti addition. Alkene becomes a Mark alcohol Rearrangement: yes; hydride shift Stereochemistry: Racemic Regiochemistry: Markovnikov Describe an oxymercuration-demercuration reaction. Study with Quizlet and memorise flashcards containing terms like What is the general formula for alkenes?, What type of alkene doesn't exist?, What is an alkene? and others. of this Write an equation for the reaction of epoxyethane with water in a 1 : 1 mole ratio and give a use for the product obtained. Study with Quizlet and memorise flashcards containing terms like Ethene + hydrogen→? And under what conditions, What will be formed when halogens react with alkenes, Alcohols can be made by steam hydration under what condtions and others. Study with Quizlet and memorize flashcards containing terms like what is the order for alkyl groups in a carbocation from most stable to least stable, define hyperconjugation, what is markovnikovs rule? and more. The formation of two sigma bonds C. , In SN1 reactions, the intermediate carbocations can eliminate a -Start with an alkene and you need either Platinum (Pt), Pd, or Ni for this reaction to be underwent (they are the catalysts) -this is a "syn addition" contrary to anticoplanar -hydrogen atoms that are attached to the surface of a catalyst, attack the bottom of the alkene -the other atoms maintain their relative stereochemistry -Hydrogen addition - how we produce saturated fats -syn addition Alkene bonds to a Mercury ion, with a Mercurinium ion forming. A. 1 gives several examples of reactions at a carbon-carbon double bond along with the descriptive names. Try the fastest way to create flashcards Study with Quizlet and memorize flashcards containing terms like Which of the following statements describes features found in all elimination reactions?, Reactions in which elements and/or groups from adjacent carbon atoms are lost in order to form a new π bond are called _____ reactions, Which of the following are true regarding alkene stability? and more. 2. Substitution reaction 4. Alkene Reactions. Study with Quizlet and memorize flashcards containing terms like The most characteristic reaction of alkenes is, A reaction mechanism, A reactive intermediate and more. , Acid-catalyzed hydration Alkene turns into an alkane with an OH group put on the more substituted carbon -the most characteristic reaction of alkenes is an addition reaction to the carbon-carbon double bond in such a way that the pi bond is broken, and in its place, sigma bonds form on to two new atoms or groups of atoms. hello quizlet Study tools Study with Quizlet and memorize flashcards containing terms like Every reaction of alkenes involves *addition*, meaning, Because *alkenes are electron rich*, they do *not* react with ______. Study with Quizlet and memorize flashcards containing terms like Addition of HX to an alkene, Yes, Free radical addition of HBr to an alkene and more. Study with Quizlet and memorize flashcards containing terms like addition, elimination, substitution and more. In such reactions the carbon-carbon π-bond is completely broken by the action of an oxidizing agent, resulting in more oxidized forms of carbon, such as aldehydes, ketones, and carboxylic acids. Study with Quizlet and memorize flashcards containing terms like What typically happens in an alkene addition reaction?, What are the two possible regiochemical outcomes of an alkene addition reaction if only one of the groups added is a hydrogen atom?, What is a Markovnikov product? and more. Scheduled maintenance: July 8, 2024 from 07:00 PM to 09:00 PM hello quizlet Study with Quizlet and memorize flashcards containing terms like What is the functional group of alkenes?, What does combusting an alkene produce?, Why do alkenes burn in air with a smoky flame? and more. -using a lighted spill-alkenes burn but w/ a smokier, yellow/luminous flame compared with alkanes bc. Table 6. Reactions of alkene quiz for 12th grade students. Stereochemistry of this addition can be explained by the mechanism of the reaction. can be used to achieve an anti-markovnikov addition of water across an alkene. , Syn addition vs Anti addition and more. , The negative part of the h-Br ends up on the more or least substituted carbon in the double bond. Find other quizzes for Chemistry and more on Quizizz for free! Jul 12, 2023 · The reaction of the addition is not regioselective but stereoselective. alpha Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation (Markovnikov) Alkene turns into an alkane with the halogen put on the more substituted carbon. Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation, Hydration (Mark's Rule), Hydrohalogenation and more. Study with Quizlet and memorise flashcards containing terms like Explain why alkenes are much more reactive than alkanes, Give four examples of substances that undergo addition reactions with alkenes, State what each of the addition reactions with alkenes involve and others. The products are the same because one of the products is converted after the abstraction. Jun 20, 2024 · Study with Quizlet and memorize flashcards containing terms like Catalytic Hydrogenation of Alkenes, Acid-Catalyzed Hydration of Alkenes to form alcohol, the rate-limiting step of alcohol dehydration is and more. Free Access! Study with Quizlet and memorize flashcards containing terms like Addition of halide (HX), Peroxides and HBr (free-radical reaction), Hydration of alkenes and more. Find step-by-step Chemistry solutions and the answer to the textbook question What kinds of reactions are common to alkenes? 1. of H2, Catalytic Hydrogenation Add. Combustion reaction 2. Reactions of Alkenes Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation with HX, HX, Addition of Water (or Alcohols to Alkenes) and more. hydrogenation of alkenes 6. 13 Study with Quizlet and memorize flashcards containing terms like Hydrogenation, hydrohalogenation, halogenation, halohydrin formation, hydration, oxymercuration Study with Quizlet and memorize flashcards containing terms like What are the 7 Alkene reactions?, Catalytic Hydrogenation Add. Alkene Reactions -each rxn starts with the addition of an electrophile to one of the sp2 carbons of the alkene -each rxn concludes with the addition of a nucleophile to the other sp2 carbon -end result: pie bond breaks, electrophile and nucleophile form new sigma bonds with sp2 carbons Study with Quizlet and memorize flashcards containing terms like addition reaction, low temperatures, Alkene Hydrohalogenation and more. Halogen addition 5. Start studying Reactions of Alkenes. Understand Deviations from Hydroboration - Oxidation, Anti Dihydroxylation. Study with Quizlet and memorize flashcards containing terms like What is a feature common to all alkenes?, What does the reactions of alkenes arise from?, True or False. , HX addition reactions and more. (Total 8 marks) When 3-bromo-2,4-dimethylpentane is treated with sodium hydroxide, only one alkene is formed. (a) Draw the product formed in this reaction. Study with Quizlet and memorize flashcards containing terms like all reactions of alkenes, addition of hydrogen halides, acid catalyzed hydration and more. electrophilic addition 1a. 1. oxymercuration demercuration reaction 2c. if the same test is carried out on a saturated compound there is no Study with Quizlet and memorize flashcards containing terms like General mechanism, Anytime carbocation intermediate, can attack from front or back bc. Step 1: Add Br2/Cl2 to alkene Step 2: Add 2NaNH2 and NH3 *Use 3NaNH2 if alkene is terminal Addition of Br2 (Alkyne) Reagents: Br2, Acetic acid, and LiBr (excess bromide ion) Br is added to both carbons of double bond if 2Br2 is used, alkyne becomes alkane and 2br is added to both carbons ANTI STEREOSELECTIVE Reaction of an alkene with MCPBA (meta-Chloroperoxybenzoric acid) or another per-oxyacid (RCO3H). The epoxide ring can then be opened with water in acid-catalyzed (most common) or base-catalyzed conditions. 6 (11 reviews A reaction in which two atoms or ions react with a double bond, forming a compound with the two new groups bonded to the carbon of the original double bond Reactive Intermediate A high-energy species, formed between two successive reaction steps, that lies in an energy minimum between the two transition states 2025 updated Organic Chemistry Quiz on Reactions Of Alkenes. b) The π bond component of the C=C bond is Contain a triple bond, where there are two elements of unsaturation for each triple bond. The step in a multistep reaction sequence that crosses the highest energy barrier Electron source A bond or lone pair of electrons usually an area of relatively high electron density, that serves as the origin of mechanism arrow. Study with Quizlet and memorize flashcards containing terms like Nucleophilic, Electrophilic, Reaction - Electrophilic Addition and more. 13 Study with Quizlet and memorise flashcards containing terms like General formula for alkene, First 4 alkenes + formula, Alkenes are unsaturated because and others. Oxymercuration- demercuration Treatment with an alkene gives a Markovnikov addition of H and OH across the alkene, WITHOUT any carbocation rearrangements. All these reactions are covered in chapter 8 of the Wade text, 4th ed. Study with Quizlet and memorize flashcards containing terms like What would be the effect of carrying out the sodium iodide in acetone reaction with the alkyl halides using an iodide solution half as concentrated?, The addition of sodium or potassium iodide catalyzes many SN2 reactions of alkyl chlorides and bromides, explain. Study with Quizlet and memorize flashcards containing terms like ) In an addition reaction to an alkene, the π bond plays the role of: A) nucleophile B) electrophile C) leaving group D) A and B E) B and C, Addition reactions of alkenes are characterized by: A) formation of a π bond B) addition of two groups across a double bond C) breaking of a π bond D) A and B E) B and C, The decrease in Study with Quizlet and memorize flashcards containing terms like What two atomic orbitals or hybrid atomic orbitals overlap to form the C-C π bond in ethylene?, Rearrangements are likely to occur in which of the following reaction types?, Using Zaitsev's rule, choose the most stable alkene among the following. when adding Br2 and H2O to an alkene, the Br is added to the (more/less) substituted carbon and the OH is added to the (more/less) substituted carbon (space in between) o3, (ch3)2S name the reagents needed to convert a carbon-carbon double bond into two separate carbon-oxygen double bonds (known as ozonolysis) Study with Quizlet and memorize flashcards containing terms like Halogenation, Halogenation Stereochemistry, Halogenation Solvent and more. Study with Quizlet and memorize flashcards containing terms like Addition Reactions, Addition Reactions Diagram, Addition of HX to Alkenes and more. 1 Electrophilic Addition Reactions. The reaction being exothermic D. metal catalyst attracts H2 molecule to weakly bind to its surface 2. An H2O molecule comes in, creating an alkene with an H2O and a Mercury ion. Find step-by-step Chemistry solutions and the answer to the textbook question Show the product(s) of reaction of the following alkenes with NBS:. Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation, Hydration, Hydrogenation and more. Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation of alkenes, Hydration of alkenes, Halohydrin Formation of Alkenes and more. , An addition in which two groups add to opposite faces of the double bond (as in addition of Br2), An addition in which the electrophile (electron-pari acceptor) bonds to one of the double Study with Quizlet and memorize flashcards containing terms like acid catalyzed reaction, aldehyde, anti addition and more. Study with Quizlet and memorize flashcards containing terms like additions, opposite, alkenes are reactants, two new sigma bonds and more. carbons the had the pi bond transfer their electrons from the catalyst to the hydrogens bound to the catalyst (happens at the same time=syn addition) *exothermic reaction H2(gas) & metal catalyst (pt, of, ni, pd/c) produces alkane; reaction that reduces c-c double bond in an alkene to a C-C single bond alkane. Try it free Study with Quizlet and memorize flashcards containing terms like What is an alkene and what is its general formula?, 1) What makes an alkene unsaturated? 2) What is the difference between saturated and unsaturated fats?, What are the 4 alkenes you must know? and more. The electrons from a pi bond bond with a halogen atom, this causes homolytic fission to occur, where there is a leftover bromine with two electrons. Study with Quizlet and memorize flashcards containing terms like What are the 4 main reactions alkenes undergo, In complete combustion of alkenes what is produced, What does the presence of the double bond (C=C) mean and more. does not undergo the addition reactions characteristic of alkenes. Study with Quizlet and memorize flashcards containing terms like Which of the following statements describes features found in all elimination reactions?, Reactions in which elements and/or groups from adjacent carbon atoms are lost in order to form a new π bond are called _____ reactions, Which of the following are true regarding alkene stability? and more. Study with Quizlet and memorize flashcards containing terms like What is the most characteristic reaction of alkenes?, anti-addition, syn-addition and more. Hydrogenation. Catalytic hydrogenation A reaction that involves the addition of molecular hydrogen ( H₂) across a double bond in the presence of a metal catalyst. Electrophilic addition reactions: Reactions involving alkenes are generally electrophilic addition reactions. and more. Study with Quizlet and memorize flashcards containing terms like Allicin, Geraniol, alpha-Farnesene and more. there is incomplete combustion-alkenes release less energy per mole in combustion than alkanes bc. Study with Quizlet and memorize flashcards containing terms like Alkyl Halides & Alcohols, E2 (dehydrohalogenation), Dehydrohalogenation and more. Study with Quizlet and memorize flashcards containing terms like Hydroboration, Hydrogenation, Addition of HX to alkenes and more. Study with Quizlet and memorize flashcards containing terms like electrophilic addition of hydrogen halides to alkenes forming alkyl halides, Reaction #1: electrophilic addition of hydrogen halides to alkenes forming alkyl halides, H+ and more. diazomethane method 6b simmons smith reaction 6c. Fresh features from the #1 AI-enhanced learning platform. Study with Quizlet and memorize flashcards containing terms like Whare are alkene reactions called?, What happens during electrophilic additions?, What is step one of electrophilic addition? and more. Study with Quizlet and memorise flashcards containing terms like Compare the reactivity of alkenes and alkanes. Study with Quizlet and memorise flashcards containing terms like How do alkenes react?, Addition of hydrogen reaction (hydrogenation), Addition of steam/water (hydration) and others. addition of halogens 4. Study with Quizlet and memorize flashcards containing terms like addition, hydrogenation, halogenation and more. Study with Quizlet and memorize flashcards containing terms like H2 , Metal Catalyst (Pd, Pt, Ni), Hydration of Alkynes (HgSO4), M, NH3 ; H2/Pd-CaCo3 (or BaSo4) quinoline ; H2/Lindlar's Catalyst and more. ORGANIC CHEMISTRY: Alkene Reactions. Study with Quizlet and memorize flashcards containing terms like Addition reactions, pi bonds functions as, addition reaction conditions and more. Study with Quizlet and memorise flashcards containing terms like What are two popular commercial reactions?, What is a free radical?, What is a monomer? and others. Study with Quizlet and memorize flashcards containing terms like Hydrogenation of an alkene, Hydrohalogenation of alkene, Hydration of alkene and more. Which alkene was used as the feedstock for this reaction? But-1,3-diene SP 4. Study with Quizlet and memorize flashcards containing terms like Alkene, Mechanism of the Reaction, Primary Carbocation and more. 1. The decrease in entropy observed for alkene addition reactions results from _____. Alkene then forms with an OH molecule and Mercury ion being replaced by a hydrogen Tautomerism is at work, from enol to a ketone 2025 updated Organic Chemistry Quiz on Reactions Of Alkenes. the reaction between alkenes and bromine can be used to identify if there is a C=C bond present and the organic compound is unsaturated. (b) Explain why this reaction has only one regiochemical outcome. the orange colour disappears indicating the presence of a C=C bond. Start studying Organic Chemistry (Alkene Reactions). Study with Quizlet and memorize flashcards containing terms like Electrophilic addition to an alkene, Markovnikov's Rule (and reactions where applicable), Acid-catalyzed hydration of alkenes and more. alkoxy mercuration demercuration reaction 2d. addition of carbenes 6a. the reaction is stereospecific and proceeds via a syn addition hydroboration proceeds via a concerted process in which borane is attacked by a pi bond, triggering a simultaneous hydride shift a) This compound can undergo to reaction of substitution and reaction of elimination. Study with Quizlet and memorize flashcards containing terms like addition reactions, Hydrohalogenation, Markovnikov Addition and more. Quickly Test your understanding of Alkenes Reactivity, Hydrogenation, Hydrohalogenation of Alkenes. Alkenes react with ______. It has four degrees of unsaturation, making it a highly unsaturated hydrocarbon. addition of HX to alkenes 1b. Page numbers are from "First Semester Organic Chemistry Reactions 2015" (Ickes) Learn with flashcards, games, and more — for free. The treatment of alkenes with HX(where X=Cl, Br, or I) results in an addition reaction called hydrohalogentation, in which H and X are added across the pi bond. 3. key reactions of alkenes in which two molecules Study with Quizlet and memorise flashcards containing terms like Why are alkenes more reactive than alkanes?, What are the types of addition reactions? What do they all do?, What does hydrogenation involve? What are the conditions? What are the uses? and others. Study with Quizlet and memorize flashcards containing terms like Alkenes readily undergo ____ reactions because they contain a C-C _____ bond, which is easily broken. b) Here S N 2 S_N2 S N 2 is not possible because as a substrate we have tertiary alkyl halide (it is not favorable). However, in cases where the alkene is unsymmetrical, the ultimate placement of H and X must be considered. In the first step electrophilic halogen with a positive charge approaches the double carbon bond and 2 p orbitals of the halogen, bond with two carbon atoms and create a cyclic ion with a Study with Quizlet and memorize flashcards containing terms like Alkene + HBr ROOR, Alkene + Hx, Alkene + 1) O3 2) DMS and more. In 1st process in this image, the alkene is symmetrical. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The temperature dependence of the deltaS term Study with Quizlet and memorize flashcards containing terms like Acid-Catalyzed Reaction, Aldehyde, Anti Addition and more. Study with Quizlet and memorize flashcards containing terms like electrophile, order of reactivity of hydrogen halides, addition of hydrogen halide to alkene and more. Major alkene is going to be trisubstituted one. The following carbocation is an intermediate in the electrophilic addition reaction of HCl with two different alkenes. alkene comes in, pi bond breaks, electrons from pi bond weakly bind to the metal catalyst 3. Halogen substitution 3. Free Access! Another important type of reaction involving alkenes is oxidative cleavage. The mechanism typically involves the formation of a carbocation intermediate, which can lead to rearrangements. Two molecules reacting to form one single molecule E. Study with Quizlet and memorize flashcards containing terms like hydrohalogenation of alkene, Carbocation and Free Radical Stability, Markovnikov's Rule and more. , Hydrohalogenation (anti-Markovnikov) Alken turns into alkane with the halogen on the less substituted carbon. Study with Quizlet and memorize flashcards containing terms like Addition of hydrogen and halogen across a double bond, Addition of H and OH across a double bond, Addition of two halogen atoms across a double bond and more. free radical addition of HBr 2a. Study with Quizlet and memorize flashcards containing terms like what is a functional group?, how do alkenes react most of the time?, what happens in an addition reaction of alkenes? and more. Study with Quizlet and memorize flashcards containing terms like cis vs trans alkenes, degrees of unsaturation, Z isomer and more. hydration of alkenes 2b. Study with Quizlet and memorize flashcards containing terms like The preparation of alkenes is dominated by, What are the 2 most common elimination reactions?, What is the reaction in which there is a loss of HX from an alkyl halide? and more. Identify both, and tell which C-H bonds in the carbocation are aligned for hyperconjugation with the vacant p orbital on the positively charged carbon. Study with Quizlet and memorize flashcards containing terms like reactant of electrophilic addition of alkenes, products of electrophilic addition of alkenes, reactants of halogenation of alkenes and more. The double bond of the alkene cause a temporary dipole to form in the halogen 2. Reactions of Alkenes and Alkynes 3. , What are the four main addition reactions of alkenes?, Describe the hydrogenation of alkenes. Study with Quizlet and memorize flashcards containing terms like Hydro-Halogenation, Acid Catalyzed Hydration, Halogenation (Bromination) and more. hydrocarboration of alkenes 3. 4. Study with Quizlet and memorize flashcards containing terms like Are alkenes more reactive or alkanes are, What are the reactions in alkenes, What is the definition of electrophilic addition reaction and more. of H2 and more. Study with Quizlet and memorize flashcards containing terms like Halogenation, Halohydrin, Oxymercuration and more. and others. Study with Quizlet and memorize flashcards containing terms like Reduction reactions (3), Hydration reactions (2), Permanganate oxidation (2) and more. Study with Quizlet and memorize flashcards containing terms like E1 Reaction, Requirements for E1 Reactions, E2 Reaction and more. Write an equation for the reaction of an excess of epoxyethane with ethanol and give a use for the product obtained. 1) BH3, THF 2) H2O2, NaOH Hydroboration-oxidation Treatment with an alkene gives an ANTI-Markovnikov addition of H and OH across the alkene. The double bond can act as a nucleophile attacking electron deficient species. Converts alkene into an epoxide (3 membered cyclic ether ring). A positively charged, bridged intermediate formed during the addition reaction that occurs when an alkene is treated with molecular bromine ( Br₂). Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation of alkenes, Carbocations, Carbocation stability and more. Study with Quizlet and memorize flashcards containing terms like A reaction involving an increase in the number of groups attached to the alkene and a decrease in the number of elements of unsaturation. Study with Quizlet and memorize flashcards containing terms like alkyl halide treated with strong, small base produces, alkyl halide treated with strong, bulky base produces, to eliminate a hydroxyl group, use and more. Study with Quizlet and memorise flashcards containing terms like How reactive are alkenes?, Why are alkenes more reactive than alkanes, What addition reactions do alkenes undergo and others. Halogen Addition (Alkyne) 1 mole of X2: alkene 2 moles of X2: alkane Oct 4, 2024 · Study with Quizlet and memorize flashcards containing terms like What is Markovinikov's Rule?, T/F: The Markovnikov's rule allows for the formation of the most stable cation. Formation of Mark alcohol Reagents: 1) Hg(OAc)₂/(H₂O/THF) 2) NaBH₄ or LiAlH₄ Rearrangement: no Stereochem: 3-membered ring; ANTI Regiochem: Markovnikov (C6H6) is the simplest aromatic hydrocarbon (or arena). Study with Quizlet and memorize flashcards containing terms like addition reaction, reactive intermediate, bond dissociation energy and more. Study with Quizlet and memorize flashcards containing terms like HX, HBr, ROOR, H2SO4, H2O (Bascially H3O +) and more. The major alkene is going to be monosubstituted one. Try the fastest way to create flashcards Contain a triple bond, where there are two elements of unsaturation for each triple bond. The breaking of a pi and sigma bond B. formation of halohydrin 5. Some reactions with alkynes resemble the reactions of alkenes, like addition and subtractions, but some are specific to alkynes. , Which of the following options correctly describe the addition of a hydrogen halide such as HCl to an alkene? Select all that apply. When bromine water (an orange solution) is added drowse to a sample of an alkene, bromine adds across the double bond. Teacher The treatment of alkenes with HX(where X=Cl, Br, or I) results in an addition reaction called hydrohalogentation, in which H and X are added across the pi bond. Study with Quizlet and memorise flashcards containing terms like What type of reactions do alkenes have?, What addition reactions can alkenes do? (3), Describe what happens to an alkene in a addition reaction? (2) and others. a) Two new sigma bonds are formed in this reaction. Study with Quizlet and memorize flashcards containing terms like Hydrogenation catalyst, Alkene Hydrogenation Product, Halogenation solvent and more. Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation (Markovnikov), Hydrohalogenation (anti-Markovnikov), Hydration (Markovnikov) and more. 3 f) addition reactions of alkenes with: ii) halogens to form dihaloalkanes, including the use of bromine to detect the presence of a double C=C bond as a test for unsaturation in a carbon chain Study with Quizlet and memorize flashcards containing terms like hydrohalogenation, acid-catalyzed hydration, oxymercuration-demercuration and more. Most alkenes react with H2 in the presence of a transition metal catalyst (Pt, Pd, Ni, Ru) to give an alkane -called catalytic reduction or catalytic hydrogenation often occurs with syn stereoselectivity, H2 and alkene are absorbed onto a metal surface An H is transferred to the alkene, making a new C-H bond Study with Quizlet and memorize flashcards containing terms like Hydrohalogenation reactants, Hydrohalogenation product, Alkene+HX and more. Electrophilic addition is the most common reaction for alkenes and alkynes, involving the addition of electrophiles to the double or triple bond. fci juskstu jhod gugzp lmidfht swp eqhm yeafywd djlaub pjacu