Test: Acids, Bases & Salts - Class 10 MCQ

The pH of a salt formed by a weak acid and a weak base is unpredictable. Here are the key points:

• The pH cannot be determined without testing.
• Salts from strong acids and strong bases have predictable pH values.
• In contrast, salts from weak acids and weak bases require a pH test to ascertain their level.

When a base reacts with an acid, the primary outcome is the formation of salt and water. This reaction is a fundamental property of bases and acids when they neutralize each other's properties. The formation of salt and water signifies the completion of the chemical reaction between the acidic and basic components, resulting in a more stable and neutralized solution.

When an acid reacts with a metal carbonate, the chemical reaction results in the formation of salt, carbon dioxide, and water. This reaction is a characteristic property of acids, where the carbonate compound reacts with the acid to produce these specific products. The evolution of carbon dioxide gas during this reaction is often observable as bubbles, indicating the release of the gas.