This question has multiple parts. work all the parts to get the most points. when the alcohol below is treated with and pyridine, the expected elimination product is formed. however, when this alcohol is treated with , the elimination product is 1,2-dimethylcyclopentene. write mechanisms for the steps below and account for the difference. (dehydration in the presence of proceeds in 3 steps, while dehydration in the presence of proceeds in 5 steps.)

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

pv=nrt

explanation: