Class 10, Science
Terms and Definitions
| Terms | Definition |
| Acid-base | A chemical reaction between an acid and a base producing salt and water. |
| pH-scale | A scale used to measure the acidity or basicity of a solution. |
| Strong-acid | An acid that completely ionizes in water. |
| Weak-acid | An acid that partially ionizes in water. |
| Strong-base | A base that completely dissociates in water. |
| Weak-base | A base that partially dissociates in water. |
| Hydronium-ion | The ion H3O+ formed when an acid dissolves in water. |
| Hydroxide-ion | The ion OH− responsible for basicity in aqueous solutions. |
| Neutral-solution | A solution with a pH of 7, neither acidic nor basic. |
| Acidic-solution | A solution with a pH less than 7. |
| Basic-solution | A solution with a pH more than 7. |
| Universal-indicator | An indicator showing different colors at different pH values. |
| Olfactory-indicator | A substance that changes its smell in acidic or basic media. |
| Litmus-paper | An indicator that turns red in acid and blue in base. |
| Methyl-orange | An indicator that turns red in acid and yellow in base. |
| Phenolphthalein-indicator | A chemical compound that is colorless in acid and pink in base. |
| Neutralization-reaction | A reaction in which an acid and a base react to form salt and water. |
| Dilute-acid | An acid solution with a low concentration of H+ ions. |
| Concentrated-acid | An acid solution with a high concentration of H+ ions. |
| Metal-carbonate | A salt that reacts with acids to produce carbon dioxide. |
| Metal-hydrogen-carbonate | Reacts with acid to produce carbon dioxide, water and a salt. |
| Acid-rain | Rainwater mixed with atmospheric acids like sulfuric and nitric acids. |
| Antacid-tablet | A medicine containing base to neutralize excess stomach acid. |
| Calcium-hydroxide | A base also known as slaked lime. |
| Sodium-hydroxide | A strong base used in making soaps and detergents. |
| Sodium-chloride | Common salt formed by neutralization of hydrochloric acid and sodium hydroxide. |
| Washing-soda | A salt of sodium carbonate used in cleaning. |
| Baking-soda | Sodium hydrogen carbonate used in cooking and as antacid. |
| Bleaching-powder | A compound used for disinfection and bleaching. |
| Common-salt | The edible salt we use in daily life, chemically sodium chloride. |
Learning Tasks
Words Search in Terms used in acids, bases, salts
Cross word puzzles – Terms and definitions of acids, bases, salts
Cross Word Puzzle in acids and bases
Cross word puzzle in acids in our daily life
Questions and Answers
Importance of pH
