The term electrical work best fits which of the following descriptions? Select the correct answer below: A) Electrical work is the difference in electrical potential that arises when dissimilar metals are connected.
B) Electrical work is the charge of 1 mol of electrons.
C) Electrical work is the rate of flow of electrical charge.
D) Electrical work is the negative of the product of total charge and cell potential

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.