Strength, Preparation And Properties Of Acids And Bases

Strength, Preparation and Properties Of Acids & Bases

ACIDS:
a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind is known as Acid

Based On Strength

Strong acids :    
The acids which undergoes complete ionisation when dissolved in water and furnish large concentration of H⁺  ions are called strong acids.
Ex:-Sulphuric acid(H₂SO₄) Hydrochloric acid (HCl) Nitric acid (HNO₃)
    
Weak acids :
The acids which undergoes partial ionisation when dissolved in water and furnish less concentration of H⁺  ions are called weakacids.
Ex:-Carbonic acid(H₂CO₃) Acetic acid (CH₃COOH )
       Nitrous acid Phosphoric acid (H₃POD)
       Phosphorous acid (H₃PO₄)

Concentrated and Dilute Acid:    
The acid s are categorized as concentrated and dilute acids.
If you add acid to least quantity of water it is called concentrated acid while added to  high quantity of water is called diluted acid. 
Should be careful which adding water to an acid, because acid gives out heat, fumes and some times bursts into flame. Glass container may break due to excessive heat.

Acids in your body:
Hydrochloric acid, made in the stomach, kills most of the germs that you swallow with your food and it also makes the conditions right for the food in your stomach to be digested.
Lactic acid made by bacteria feeding on the sugars, may give you tooth decay.