Normal salt:

NaCl, or sodium chloride, is a normal salt. Normal salts are formed by the reaction between an acid and a base, where the acid donates a proton (H+) and the base donates a hydroxide ion (OH-). In the case of NaCl, sodium hydroxide (NaOH), which is a base, reacts with hydrochloric acid (HCl), which is an acid, to form NaCl.

Properties of NaCl:

- NaCl is a white crystalline solid at room temperature and is highly soluble in water.
- It is commonly known as table salt and is used in various culinary applications as a seasoning and preservative.
- When dissolved in water, NaCl dissociates into sodium ions (Na+) and chloride ions (Cl-), making it a strong electrolyte.

Uses of NaCl:

- Apart from its culinary uses, NaCl is also used in industries such as chemical manufacturing, pharmaceuticals, and water treatment.
- It is essential for maintaining proper electrolyte balance in the human body and is used in medical treatments for conditions like dehydration.

In conclusion, NaCl is classified as a normal salt due to the way it is formed through a neutralization reaction between an acid and a base. Its properties and widespread uses make it a crucial compound in various industries and in our daily lives.