Question

What do all Acids and all Bases have in common?

Answer 1

DEFINITION-

ACIDS - compounds which when dissolve in water produces H+ ions as the only positively charged ions.

BASES - compounds which when dissolve in water produces OH- ions as the only negatively charged ions.

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SIMILARITY-

1)ACIDS and BASES both dissolves in water to produces ions and therefore GOOD CONDUCTORS OF ELECTRICITY

2)ACIDS and BASES react with each other to produce salt and water.

Answer 2

in generally you can say that all acid have a specific form and all basic have a specific form .
because , acid means H+ ions lossing property ,
e.g HA is general equation of acid .
e.g
HA → H+ + A-

example :- HCl , HBr , HF etc are acid in the form of HA.

Base :- base which releases OH- ions .
general form of base is BOH
e.g
BOH →B+ + OH-

example :- NaOH , KOH , Mg(OH)2 etc are base in the form of BOH .

some time , any other compound behaves like an acid , or base . this reason out of 10th class syllabus .
because for understanding this reason , Lewis concept , bonstet Lowery concept require , which is out of syllabus .