Question

Is hydrochloric acid strong or weak?

Answer 1

In order to know whether the hydrochloric acid is a strong acid or weak acid, we must first know what a hydrochloric acid is. Hydrochloric acid also known as the hydrogen chloride is a chemical substance which is represented by the chemical formula $HCl$.

Complete answer:
Let us first understand about the acids. An acid is a substance which can donate the proton to another substance. Lewis acid is a substance which can accept the unshared pair of electrons. It will turn the blue litmus paper into red. The pH of the acid substance will be below 7. Acids have a sour taste and it is corrosive in nature.
Let us now understand about the strong acids and weak acids. The strong acids are those acids which can completely dissociate the acid into ${H^ + }$ions. The weak acids are those acids which cannot dissociate ${H^ + }$ions completely.
Hydrochloric acid is an inorganic acid which is found to be colourless. It has a very pungent odor. Hydrochloric acid are those acids which will be completely dissociated into ${H^ + }$ ions. Hence the hydrochloric acids are strong acids.

Note:
Some other examples for strong acids and weak acids are given below:
Examples of strong acids are:
- Nitric acid
- Sulphuric acid
- Hydrobromic acid
- Chloric acid
- Perchloric acid
Examples of weak acids are:
- Acetic acid
- Formic acid
- Oxalic acid
- Benzoic acid