Question

1. acids , bases and salts (for project work class 10)​

Answer 1

Answer:

An acid is defined as a substance whose water solution tastessour, turns blue litmus red and neutralizes bases. A substance is called base if its aqueous solution tastes bitter, turns red litmus blue or neutralizes acids. Salt is a neutral substance whose aqueous solution does not affect litmus

Answer 2

Explanation:

Acids: Chemically, acids are substances which have hydrogen ions and turn blue litmus paper red. They are sour in taste. On a pH scale the number representing a solution acidic ranges from 1 to 6.9. In a solution, acids dissociate to give hydrogen ions.

Base : Base are the substances which give hydroxyl ions on dissociation. They are bitter in taste and on a pH scale, a basic solution has  pH range of 7.1 to 14.

Salts : Slats are formed by the reaction between the acids and bases. For example- Sodium chloride is a salt and it is formed by reaction between Hydrochloric acid and Sodium hydroxide.