Question

Give two examples of hydracids.

Answer 1

Before answering this question, we should know what acid and hydracids. The hydrogen-containing substance which donates its proton to another substance is known as acid and molecular compounds where hydrogen is combined with a second nonmetallic element, it is known as hydracids.

Complete answer:
Hydrochloric acid denoted by HCl is an aqueous solution of hydrogen chloride. The other name of HCl is muriatic acid. It is a strong acid and is a colorless solution, it has a pungent smell. It is an important laboratory reagent and industrial chemical, it is also a part of the gastric acid in our digestive systems of humans and animal species.
Preparation:
In industries, this is generally prepared by dissolving hydrogen chloride in water. It can also be produced in many ways, therefore many precursors to hydrochloric acid are there.
It can be produced by the direct combination of chlorine gas and hydrogen gas, this reaction is quick at a temperature above 250$^{\circ }C$.
${{H}_{2}}+C{{l}_{2}}\to 2HCl$
Heat is also evolved.
Hydrobromic acid is denoted by HBr, it is a strong acid that is formed by dissolving the diatomic molecule Hydrogen bromide in water.
Preparation:
It is prepared in the laboratory with the reaction of $B{{r}_{2}}$,$S{{O}_{2}}$, and water.
$B{{r}_{2}}+S{{O}_{2}}+2{{H}_{2}}O\to {{H}_{2}}S{{O}_{4}}+2HBr$

Note:
Applications:
HCl-
Hydrochloric acid helps in the pickling of steel and helps in the removal of rust from iron with the help of techniques like galvanization, rolling, etc. It helps in pH control and neutralization. It regenerates ion exchangers. It also helps in leather processing and household cleaning.
HBr-
It is used to produce inorganic bromides, mainly the bromides of zinc, calcium, and sodium. It acts as a useful reagent to generate organobromine.