1. Hydrochloric acid
2. Sulfuric acid
3. Nitric acid
4. Acetic acid
5. Citric acid
6. Lactic acid
7. Phosphoric acid
8. Hydrofluoric acid
9. Hydrobromic acid
10. Formic acid
11. Carbonic acid
12. Hydroiodic acid
13. Perchloric acid
14. Tartaric acid
15. Maleic acid
16. Benzoic acid
17. Propionic acid
18. Butyric acid
19. Oxalic acid
20. Boric acid

Sulfuric acid, Hydrochloric acid, Nitric acid, Phosphoric Acid

Some examples that would be considered an acid: sulfuric acid, nitric acid, hydrofluoric acid, perchloric acid, boric acid, periodic acid, salicilic acid, stearic acid, citric acid, oxalic acid, etc.

Strong (mineral) acids are ;

Hydrochloric Acid

Sulphuric Acid

Nitric Acid

Weak (carboxylic) acids are

Ethanoic Acid

Methanoic Acid

Propnoic Acid .

Acetic acid, Formic acid, valeric acid, caproic acid, Palmetic acid, Stearic acid, Oleic acid, Citric acid, Ascorbic acid e.t.c.