Question

Which is more dangerous: sulphuric acid or hydrochloric acid?

Answer 1

Any hydrogen-containing substance capable of donating a proton (hydrogen ion) to another substance is referred to as an acid. A base is a molecule or ion that can accept hydrogen ions from acids. The sour taste of acidic substances is usually used to identify them. Blue litmus paper is known to turn red when exposed to acids.

Complete answer:
Many compounds known to scientists as acids are used in our daily lives. Citric acid is present in the orange or grapefruit juice you drink for breakfast (also known as Vitamin C). Lactic acid is present in milk when it becomes sour. Acetic acid is present in the vinegar used in salad dressing. According to this, a chemical bond is composed of an acid-base combination. The characteristics of a molecule, therefore, can be understood by dividing it into acid and base fragments.
Acidic Properties
Acids are naturally corrosive.
They are excellent electrical conductors.
Their pH levels are always lower than 7.
When these substances react with metals, they emit hydrogen gas.
Acids have a sour taste to them.
Sulphuric acid: Sulphuric acid, also known as oil of vitriol, is a mineral acid with a molecular formula ${{H}_{2}}S{{O}_{4}}$ that is composed of the elements sulfur, oxygen, and hydrogen. It is a clear, colorless, odorless, viscous liquid that is miscible with water at all concentrations.
Hydrochloric acid: Muriatic acid, or hydrochloric acid, is an aqueous solution of hydrogen chloride. It is a colorless solution with a strong pungent odor. It's categorized as a strong acid with a molecular formula $HCl$. It is a component of gastric acid in most animal digestive systems, including humans. Hydrochloric acid is a commonly used laboratory reagent and industrial chemical.
As its $Ka$ value (acid ionization constant) of hydrochloric acid is $1.3\text{ }\times {{10}^{6}}$ and that of sulphuric acid is $1\text{ }\times \text{ }{{10}^{3}}$, it is a stronger acid than sulphuric acid. As a result, hydrochloric acid is more hazardous than sulfuric acid. Acids with a higher $Ka$ value will dissociate more readily.
Thus, hydrochloric acid is more dangerous than sulfuric acid.

Note:
Humans will experience throat and chest pain, as well as difficulty breathing if the concentration of hydrochloric acid gas in the air is $0.035$ percent. Inhaling a large amount of hydrochloric acid gas or mist may result in death. Drinking concentrated sulfuric acid can cause mouth and throat irritation, as well as eroding a hole in your stomach; it has also resulted in death. Sulfuric acid will burn your skin if you come into contact with it.