Question

how can you define salt in Chemistry

Answer 1

in chemistry,salt is a ionic compounds made by the reaction of acid and base
sodium chloride or common salt is the term we use in chemistry.

Answer 2

salts are the ionic compounds formed by the reaction of acids and bases. for example
NaOH +HCl =NaCl + H2O
where NaCl is the common salt we use in daily life.