Match the term with its description. match term definition acid a) a compound that increases hydrogen ions (h+) when it is dissolved in a solution alkaline b) an atom or molecule that has a positive or negative charge ph c) a compound that increases the hydroxide ions (oh−) when it is dissolved in a solution ion d) a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water

Explanation:

Acid → A) A compound that increases hydrogen ions  when it is dissolved in a solution

Acids are those substance which gives hydrogen ions in their aqueous solutions.

Alkaline → C) A compound that increases the hydroxide when it is dissolved in a solution

Bases are those substance which gives hydroxide ions in their aqueous solutions.

pH → D) A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water

The pH is the scale ranging from 0 to 14 used. This scale helps to determine the acidic or basic nature of a compound when dissolved in water.

Ion → B) An atom or molecule that has a positive or negative charge

Ion are those species of atom which caries positive or negative charge.

Positive charged atom = cation

Negative charged atom = anion

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.