Which compound would you expect to have the lowest boiling point? What is the IU

Question

Which compound would you expect to have the lowest boiling point? What is the IUPAC name for the following compound? 4-Phenyl-2-hexanol 2-Phenyl-4-hexanol 4-Phenyl-2-pentanol 4-Ethyl-4-phenyl-2-pentanol 3-Phenyl-5-hexanol Which of the following statement about alcohol is not true? The oxygen atom of the hydroxyl group is nucleophilic. The hydroxyl group can be converted into better leaving group by protonation. The oxygen atom of the hydroxyl group cannot undergo hydrogen bonding. Alcohols are generally soluble in water. Ethanol has higher boiling point than diethylether. Which structure(s) represent(s) diastereomer(s) of I? II II and IV II and III III and IV II, III and IV

Explanation / Answer

1.) Answer - e) N,N,N trimethyl amine

Explanation - because it is tertiory amine tertiory amine donot have hydrogen atom attached to nitrogen therefore cannot form hydrogen bond hence have lower boiling point .

2) answer - a) 4-phenyl - 2- hexanol

Explanation - longest chain contain 6 carbon and fuctional group at no. 2 atom therefore 2- hexanol

numbering of chain starting from end which is closest to functional group thus, phenyl group occupy no. 4 possition therefore 4 -phenyl and name of the compound is 4-phenyl - 2- hexanol

3) c) oxygen of hydroxy group cannot undergo hydrogen bonding

Explanation - oxygen of hydroxy group in alcohol alwase form hydrogen bond with hydroxy hydrogen of other molecule.

4) Answer - e ) II.III and IV

diasteriomers are compounds have diffrent configuration at one or more at the equivalent steriocenter and are not mirror image of each other.

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