When two six-membered rings share a C–C bond, this bicyclic system is called a decalin. There are two possible arrangements: trans-decalin having two hydrogen atoms at the ring fusion on opposite sides of the rings, and cis-decalin having the two hydrogens at the ring fusion on the same side.a. Draw trans- and cis-decalin using the chair form for the cyclohexane rings.b. The trans isomer is more stable. Explain why.

Q: 1. What is the relationship between the following two compounds? a.identical b.not isomers;…

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Q: Ethane spends all its time in the staggered conformation because it has the lowest potential energy.…

A: The isomers that are converted into each other by rotation around a single bond are known as…

Q: 21. Which of the following is a boat conformation of cyclohexane? || II IV A. I B. II C. I D. IV A

A: Option B is correct , conformer B is called boat form of cycohexane.

Q: For which alkenes are stereoisomers possible? a. b. CH,CH,CH=CHCH3 C. -CH CH

A: a. Stereoisomers are not possible  b. Stereoisomers are possible. c. Stereoisomers are possible.

Q: Which conformation in each pair is higher in energy? Calculate the energy difference between the two…

A: When atoms are rotated around a single bond in a three-dimensional arrangement, the resulting…

Q: ***** ■. b. c. d. e. 12. a. b. c. d. e. 13. ***** ***** a. b. c. d. e. 14. N a. b. c. d. e.

A: Given are structures of organic compounds. Enantiomers are non-superimposable mirror images of…

Q: 1. construct an energy diagram to show the variation in the free energy of the molecule as the front…

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Q: 1. Write the IUPAC names for the following structures. Number the carbons and circle the…

A: The IUPAC name of the following compounds are given and the carbons are numbered and the…

Q: Monosubstituted cyclohexanes occur in two equilibrium conformations. In one conformation, the…

A: The cyclohexanes occurs in two equilibrium configuration by the ring flipping of cyclohexane. The…

Q: Compounds E and F are two isomers of 2,3-dibromopentane drawn in staggered conformations. Which…

A: We should assign the R and S configuration to the compounds to see which compound stands identical…

Q: Q1: The shrub ma huang contains two biologically active stereoisomers ephedrine and…

A: R/S is the Absolute configuration  +/- tells about the direction in which light is rotated by the…

Q: 5. Draw the following molecules in two difference configurations about the double bond. Name the…

A: The isomers which have a restricted rotation around the double bond is known as geometrical isomers.

Q: need help drawing the Newman projection,  as seen from the indicated viewing angle. Is the molecule…

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Q: EA 25 Describe the conformational change that can convert cis -1,2-dimethyl cyclohexane to ? trans…

A: Conformational change means change taking place by rotating C-C single bond. Given both compounds…

Q: Which statement is correct? I. The carbons in a chair conformation will have two axial or two…

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Q: Draw the products of combustion of each alkane. a. CH;CH,CH,CH2CH(CH3)2 b.

A: When a substance is burnt or reacts in presence of oxygen and will release heat energy. This…

Q: using both the Newman 1. Draw the two conformations of trans-1-bromo-3-methylcyclohexane projection…

A: Here we have to write chair and Newman projection of trans- 1-bromo- 3- methylcyclohexane and their…

Q: What is the IUPAC name of the starting material (make sure to include stereochemistry)?

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Q: 1. Trans-2-pentene 2. Oct-3-ene (IUPAC) 3. 3-nonyne 4. 4,6-diethyl-3,5,7-trimethyl-3-nonane 5.…

A: The skeletal structure of the molecules is drawn below:

Q: Which is the lowest energy conformer of 2-methylbutane? A) C) H₂C O 1. A O 4. D O 2. B H₂C. $ O 3. C…

A: Given in following 2-methylbutane conformers which have lowest energy means stability is more…

Q: Draw all alkenes that react with one equivalent of H2 in the presence of a palladium catalyst to…

A: The given alkane 2-methylbutane can be prepared in three ways. These are shown below.…

Q: Give the IUPAC name for each compound.

A: IUPAC name has to be given below.

Q: 1.18 Draw Newman projections of four different confor- mations of butane. Rank them in stability.…

A: Staggered confirmation is more stable than eclipsed conformation.  There are two eclipsed…

Q: Explain which of cis-1,3-dimethylcyclohexane and trans-1,3- dimethylcyclohexane has the highest…

A: The structures of cis-1,3-dimethylcyclohexane and trans-1,3-dimethylcyclohexane are represented as…

Q: CH3 a. CH;CHČH,CHCH; ČH; CH3 CH3 CH3 b. CH,CCH,CH,CH,CCH3 ČH3 ČH3 c. CH;CH,CHCH,CH,CH,CH3 ČH,CH,CH3…

A: For writing IUPAC names, we need to selecta longest parent carbon chain first. Then we need to check…

Q: 5. Given the molecule 1,2-dimethyl-4-bromocyclohexane below: CH3 Br" CH3 NOTE: All groups are cis…

A: see below

Q: 1. Consider the following compounds Draw the chair forms and determine which cyclohexane is most…

A: Step 1:To solve the problem of determining the most stable conformation between each pair of…

Q: Classify the pair of compounds as the same compound, enantiomers, diastereomers, constitutional…

A: According to the given datawe need to determine the isomer and the IUPAC of those compounds

Q: Question 4 a) Draw the two chair conformations of cis-1-chloro-2-methylcyclohexane a) Which is more…

A: On flipping of the ring the position of the substituents remains same without changing their axial…

Q: Consider the two radicals: H3C-CH₂-C-CH3 H Radical A is named: H3C-CH₂-CH₂-CH₂ A Name the two…

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Q: 2. Decide whether to use E/Z nomenclature or cis or trans (or if neither are applicable). Then, draw…

A:

Q: 3. The molecule drawn below has 3 possible stereoisomers. Draw the possible stereoisomers and give…

A: For IUPAC naming following steps are required First of all identify the longest carbon chain…

Q: A.Oxidation cant be performed to tertiary alcohols. CHOICES: True False B. Alkynes have sp2…

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Q: hich of the following statements is not true regarding the nformation of substituted cyclohexanes? O…

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Q: Draw the chain conformer of a) the most stable conformer of isopropylcyclohexane b) the most…

A: The chair conformer of Cyclohexane is the most stable conformer.We have to draw the stable conformer…

Q: a. H2C=CH2 b. (CH3)2C=CH2 c. CH3CH=CHCH3

A: We have two tyoes  of reactions  for haloalkanes , namely SN1 And SN2 Reaction. These reactions are…

Q: Q1: The shrub ma huang contains two biologically active stereoisomers ephedrine and…

A:

Q: Consider the tricyclic structure B. (a) Label each substituent on the rings as axial or equatorial.…

A: (a) The given compound contains two Cl groups and one methyl group. One Cl group is in axial…

Q: A molecule is achiral if it has a plane of symmetry in any conformation. Each of the following…

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Q: 7. Which is the most stable chair conformer of the following compound? A. B. OH C. D.

A: In the most stable chair conformation blacky groups stay at equatorial position to avoid 1,3-diaxial…

Q: Chair Conformer = axial bond = equatorial bond Draw 1,2,3,4,5,6-hexachlorocyclohexane with a. all…

A: Given  Name of structure = 1,2,3,4,5,6 -hexachlorocyclocyclohexane a) when all the chloro group is…

Q: 4. Draw both chair forms for the following cyclohexanes. Circle the more stable form. "& CN d) CN…

A: Most stable  conformer are as follow.

Q: Consider the most stable chair conformation of all cis-4-tert-butyl-1,2-dimethylcyclohexane (all…

A: Given  Name of Compound  = Cis - 4 tert butyl - 1,2 di methyl  cyclohexane  Bond Angle between the…

Alkynes

Alkynes are organic compounds that contain at least one triple bond between carbon-carbon atoms. They are a series of unsaturated compounds with a general molecular formula, CnH2n-2.