Upon hydrogenation, which of the following alkenes

Q: The heat of hydrogenation of cis-2,2,5,5-tetramethyl-3-hexene is -154 kJ (-36.7 kcal)/ mol, while…

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Q: From left to right what is the configuration of the following alkenes?

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Q: What reagent/reagents is/are necessary to transform the starting molecule into the desired product?…

A: The above given reaction for the formation of Benzyl bromide using Toluene. It is based on free…

Q: Rank the alkenes shown from least exothermic (1) to most exothermic (4) heat of hydrogena a. b. с.…

A: Given : We have to rank the above alkenes in terms of heat of hydrogenation.

Q: Which of the following a chemist would call a resonance stabilized carbocation? +) A) B) C) D) H3N.…

A: The resonance stabizalized structure have lowest energy .

Q: What alkene should be used to synthesize 3-bromohexane? 3-bromohexane

A: The alkyl halides are prepared from alkenes by the addition of hydrohalogenation.

Q: Rank these alkenes according to stability:

A: Alkenes stability can be explained by "hyperconjugation"  Displacement of alpha C-H sigma…

Q: Which of the following alkenes is the least stable?

A: Concept: Stability of alkenes: Alkenes have substituents other than hydrogen atoms attached to the…

Q: The reaction of 3-methylene-1-cyclohexene and HBr yields the four products shown in the attachment.…

A: At high temperature, thermodynamically more stable products are formed i.e. alkenes which more…

Q: Which alkene is the most stable A D

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Q: Which of the following statements about pericyclic reactions is true? A) Pericyclic reactions occur…

A: Percyclic reaction does not porecced through intermediate or ionic pathway. It goes through…

Q: Which molecule would have the lowest heat of hydrogenation? II III IV V

A: Please find your solution below : Heat of hydrogenation is the measure of stability of alkenes. More…

Q: How many moles of Bra are required to completely halogenate the alkene

A: Addition of bromine to alkene is an example for electrophilic addition reaction Intermediate…

Q: a. Which is the most stable: 3,4-dimethyl-2-hexene, 2,3-dimethyl-2-hexene, or 4,5-dimethyl-2-hexene?…

A: The structures of the given compounds are as follows:

Q: How many allylic substituted bromoalkenes are formed from the reaction of 2-pentene with NBS?…

A: NBS mainly produces bromine radicals and exhibits "radical substitution" or "electrophilic addition"…

Q: Rank the alkenes shown from least exothermic (1) to most exothermic (4) heat of hydrogenation. a. b.…

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Q: What alkyne gives each compound as the only product after hydroboration–oxidation?

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Q: Rank the following compounds in order of increasing heat of combustion:

A: Heat of combustion of a substance is defined as the energy released, when a given amount of it is…

Q: The addition of a halogen to an alkene results in a ___________ with __________ addition

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Q: А. В. С. D.

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Q: Which of the following alkenes has the lowest heat of hydrogenation?

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Q: Are terminal alkynes considered weak or strong acids?

A: Terminal alkynes are considered weak acid.

Q: Which alkene would yield the following product in the halogenation reaction? CI Alkene Cl,

A: The chlorination of a double bond using Cl2 proceeds through the formation of a chloronium ion…

Q: Which alkene would you expect to have the lowest heat of hydrogenation?

A: The answer is given as follows

Q: When adding two equivalents of HBr to an alkyne, the second bromine will always add to the same…

A: When two equivalents of HBr is added to an alkyne then the addition follows markonvikov's rule. Two…

Q: explain Carbocation Cyclizations and Rearrangements reaction

A: SOLUTION: Step 1: Carbocation rearrangements are common in organic chemistry and are defined as the…

Q: Consider the reaction scheme below. Br2 FeBr3 AICI3 NaOH warm What are the structures of X, Y, and…

A: Nucleophilic substitution reactions are those in which one nucleophile is replaced by another…

Q: Label the following alkenes from most stable, moderate and least stable.

A: Various alkene is given  Stability Order = ?

Q: Explain the apparent paradox. Although the addition of one equivalent of HX to an alkyne is more…

A: The more exothermic reaction is the addition reaction to alkynes than alkenes. It can be explained…

Q: Explain Secondary Alkyl Halides ?

A: Alkyl halides are the groups of hydrocarbons containing halogens.

Q: Draw all of the possible alkene products from the following reaction. Indicate in what amounts…

A: The reaction of an alcohol with H2SO4 produces alkene via carbocation intermediate.

Q: Which statement about Markovnikov's rule is correct? Radical addition of HBr to an alkene produces a…

A: Answer: Markovnikov's  rule predicates the product of electrophilic addition on the π-bond of…

Q: Draw the two addition products formed when the alkene shown below reacts with HCI and circle the one…

A: The given reaction is the addition of HCl to the alkene. According to Markovnikov’s rule, the…

Q: Which of the following alkenes will produce more than one monobromination product in its free…

A: The reaction of an alkene with NBS leads to allylic bromination.

Q: How many alkene products are possible in the following reaction? NaOEt - ? CH3 "CH3 H

A: The above reaction is E2 elimination. H and Chlorine are anti to each other prefers E2 elimination.

Q: Answer all questions Q1. What are the various ways by which alkenes maybe synthesized. Q2. Give…

A: SOLUTIONS: Step 1: alkenes are generally prepared through β- elimination, in which 2 atoms on…

Q: Consider the reaction scheme below. Br2 FeBr3 AICI3 NaOH Y warm What are the structures of X, Y, and…

A: Here we are required to predict the product of the reaction

Q: What are Allylic Carbocations ?

A: Carbocations are electrophiles (species that accepts electron pair in a reaction) that has a…

Q: Zaitsev's rule: states " The alkene formed in greatest amount is the one that corresponds to…

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Q: Alkenes are inherently reactive because...? A) The electrons in n bonds are not as stable as in o…

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Q: In each of the following pairs of compounds, circle the one which liberates most heat upon…

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Q: When doing a dehydration, the product will have the __ (more/less) substituted alkene.

A: Alkene - Alkenes are hydrocarbons having atleast one carbon-carbon double bond.  Dehydration…

Q: Explain Stability of Alkenes ?

A: A type of hydrocarbon that has carbon-carbon double bond in them is alkene. The general formula of…

Q: which is the most stable alkene in the following picture?

A: Some of the factors that affect the stability of an alkene are: Increase in the substitution…

Q: Which of the following alkenes is most stable? or

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Q: What reaction type is responsible for the de-colorization of bromine water exposed to cyclohexene?

A: We have to tell which option is correct from given choices

Reactions of Ethers

Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.

Epoxides

Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.

Williamson Ether Synthesis

An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.