What is the net ionic equation for the reaction that occurs when small amounts of hydrochloric acid are added to a hocl/naocl buffer solution?

H+ + OCl- → HOCl

Explanation:

Given a buffer solution, the ions interact in such manner that minimises the effect of adding acid or base to the solution, keeping the pH neutral.

In this problem, we're adding acid, which implies adding H+, so this would require a process of containing the excesses of H+. Therefore, from the information, we have that

H+ + OCl- → HOCl

HOCl (hydrochloric acid) is a weak acid and a fairly strong base. So, in this problem, adding HCl means that the excess OCl- from the sodium hydrochlorite will react with the excess H+ to form HOCl.

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.