write any five properties of acid and bases
Answers
Answer:
Properties of acids
Physical properties
They are sour to taste. Depending on the temperature, acids can occur in solid, liquid or gaseous form.
Chemical properties
They are proton donors
They have pH less than 7
They increase H+ ion concentration in solution
Acids neutralize bases producing a salt and water
Acids turn blue litmus to red
Acids react with active metals to produce hydrogen
E.g. of acids: HNO3 – nitric acid, HCl – hydrochloric acid, HC2H3O2 – acetic acid etc.
Properties of bases
Physical properties
They are bitter to taste and soapy to touch. Frequently they are solids except ammonia which is a gas.
Chemical Properties
They are proton acceptors
They have pH more than 7
They increase OH- ion concentration in solution
Bases neutralize acids producing a salt and water
Bases turn red litmus to blue
React with oils and greases (that's why they're used as drain and window cleaners)
E.g. of bases: LiOH, NaOH, KOH etc.