10 one-line questions and answers based on the topic: Salts from Class 10 Chapter – Acids, Bases and Salts:
📘 Salts – One Line Q&A (Class 10)
1️⃣ Q: What is a salt?
A: A salt is a compound formed by the neutralization of an acid and a base.
2️⃣ Q: What is the chemical formula of common salt?
A: The chemical formula is NaCl.
3️⃣ Q: Which acid and base are used to form NaCl?
A: Hydrochloric acid (HCl) and sodium hydroxide (NaOH).
4️⃣ Q: Name one salt that is used in baking.
A: Baking soda (NaHCO₃).
5️⃣ Q: What is the pH of a neutral salt solution?
A: The pH is 7.
6️⃣ Q: What is the common name of sodium carbonate?
A: Washing soda.
7️⃣ Q: Which salt is used in antacids?
A: Sodium hydrogen carbonate (baking soda).
8️⃣ Q: What is the formula of Plaster of Paris?
A: CaSO₄·½H₂O.
9️⃣ Q: What happens when Plaster of Paris is mixed with water?
A: It sets into a hard solid called gypsum.
🔟 Q: Which salt is responsible for the hardness of water?
A: Calcium and magnesium salts (e.g., CaCl₂, MgSO₄).
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