4. Draw the preferred conformation for the following compounds. Provide a brief explanation as to why you chose that conformation. a. Ph

a) Give the molecular formula and draw the skeletal structure for 3-bromo-3- methylhexane. b) Name (including E/Z stereochemistry) the FIVE alkenes that can produce 3-bromo-3- methylhexane on reaction with HBr. Draw the skeletal structure of each molecule.??? c) Define the type of stereoisomerism present in 3-bromo-3-methylhexane. Name and draw the tetrahedral representation of the two stereoisomers?. d) For the base-catalysed hydrolysis of 3-bromo-3-methylhexane (i.e. reaction with the nucleophile OH-): i) ii) iii) iv) State whether the reaction is likely to proceed by an SN1 or SN2 mechanism, and explain your choice Give the likely rate law for the reaction. Explain your choice. For the reaction intermediate, draw its structure and give the VSEPR description of the geometry at the reaction centre Give the names and draw the structures of the two reaction products. Explain your conclusions

Same or isomers?

draw only using full structural formula, draw only using full structural formula, draw only using full structural formula please

3. Draw the structure of the following alkenes. Some of these compounds can show isomerism, and some cannot. Indicate which among these can show cis and trans isomers. a. hex-3-ene b. buta-1,3-diene c. 2,3-dimethylpent-2-ene 4. Draw the structure of the following alkenes. Some of these compounds can show isomerism, and some cannot. Indicate which among these can show cis and trans isomers. a. 3-ethylhexa-2,4-diene b. pent-1,3-diene c. 3,7-dichloroocta-2,5-diene

9. Provide a systematic name for the following compound? A. 1,2,4-trimethyl-5-ethylcyclohexane B. 5-ethyl-1,2,4-trimethylcyclohexane C. 1-ethyl-2,4,5-trimethylcyclohexane D. 2,4,5-trimethyl-1-ethylcyclohexane 2 3

Organic Chemistry Explain your solution in a step by step fashion. Explain everything clearly and do not leave out any major or minor steps or details. Provide a thoughtful explanation to the question. In other words, provide your reasoning for why you picked your answer. Why are the molecules enantiomers? etc

II. Give the condensed structural formula of each of the following ethers. 1. Isopropyl propyl ether 2. Methyl phenyl ether 3. 3-Methoxyhехane 4. 3-Methyl-2-isopropoxypentane 5. Ethoxycyclobutane

[Review Topics] [References] Draw a structural formula for 2,2-dimethyl-1-propanol. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. opy aste IF

1. What functional group is produced when an aldehyde reacts with H2/Pt? A.secondary alcohol B. carboxylic acid C.hemiacetal D. primary alcohol E.alkane F.tertiary alcohol G. alkene 2. What reaction occurs when an aldehyde reacts with H2/Pt to form a primary alcohol? A. Hydration B. Hydration C. Dehydration D. Oxidation E. Reduction( hydrogentation) 3. What reaction occurs when an Ester react with H+/H2O to from a carboxylic acid and alcohol? A. Dehydration B. Reduction ( Hydrogenation) C.Hydrolysis D. Hydration E.oxidation