☰
✕

Haloalkanes and Haloarenes
Question
Wired Faculty App

Gaseous hydrogen halides and not their aqueous solutions (i.e., hydrohalic acids) are used for the preparation of alkyl halides from alkenes. Why?

Answer

Gaseous hydrogen halides are used for the prepartion of alkyl halides from the alkene because dry hydrogen halides are stronger electrophiles than the H3O+ formed in their water solutions. Moreover, H2O being a nucleophile tends to react with R– to form an alcohol.

Sponsor Area

Some More Questions From Haloalkanes and Haloarenes Chapter

Write structures of the following compounds:
1-chloro-4-ethylcyclohexane

Write structures of the following compounds:
4-tert-Butyl-3-iodohaptane

Write structures of the following compounds:
1, 4-Dibromo but-2-ene

Write structures of the following compounds:
1-Bromo-4-sec butyl-2-methyl benzene.

Why is sulphuric acid not used during the reaction of alcohols with KI?

Write structures of different dihalogen derivatives of propane.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i) A single monochloride.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:

i)Three isomeric monochlorides.

Among the isomeric alkanes of molecular formula C5H12, identify the one that on photochemical chlorination yields:
Four isomeric monochlorides.

Draw the structures of major monohalo products in each of the following reactions: