Enfant India English High school
Std : 8th Marks:20.
Note: Attempt all question from the following.
Q.1 Define the following. [6]
1. What is Acid with example?
2. Write a property of Acid.
3. Which acid is used for getting chloride salt?
4. What is ionic bond with examples?
5. Write a properties of alkalies
6. Write a chemical name of HCL , NaOH. KOH
Q.2 Answer the following questions. [6]
1. Explain difference between Acid and base .
2. Which are the industrial uses of Acid?
3. What are the use of acid?
Q.3 Match the pairs. [4]
Group A. Group B
1. Tamarind. 1. Acetic acid
2. Curd. 2. Citric acid
3. Lemon. 3. Tartaric acid
4. Vinegar. 4. Lactic acid
Q.4 Explain by writing a word equation. [4]
1. Respiration is a chemical change
2. Bubble are seen on adding lemon juice to baking soda.
