The product of a neutralisation reaction is salt and water. For example, hydrochloric acid reacts with sodium hydroxide to form sodium chloride salt and water. \\\\( { H }Cl\\quad +\\quad NaOH\\quad \\rightarrow \\quad NaCl\\quad +\\quad { H }_{ 2 }O \\\\)Hence the option \\\\(D\\\\) is correct.