9th Class Chemistry Chapter 7 TestAcid Base Chemistry

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following contains oxallic acid:

   1. Tomato

   2. Orange

   3. Tamarind

   4. Sour milk

2. Reaction between acids and bases is called:

   1. Decomposition reaction

   2. Neutralization reaction

   3. Addition reaction

   4. None of these

3. Common name of sodium hydroxide is:

   1. Caustic soda

   2. Washing soda

   3. Soda water

   4. None of these

4. The natural source of Oxalic acid is............?

   1. Tamarind

   2. Tomato

   3. Amla

   4. Orange

5. By neutralization ........ and water are formed?

   1. Base

   2. Acids

   3. Salt

   4. None of these

6. Which one is not an Arrhenius acid?

   1. HCL

   2. H₂SO₄

   3. CO₂

   4. HNO₃

7. According to Bronsted and Lowry concept, an acid is substance that can donate:

   1. Proton

   2. Electron pair

   3. Neutron

   4. Electron

8. When rain water has pH of .................... it is called acid rain?

   1. 4.2-4.3

   2. 4.2-4.1

   3. 4.2-4.5

   4. 4.2-4.4

9. Which acid is not used as a food or mixed with food?

   1. Tartaric acid

   2. Ascorbic acid

   3. Citric acid

   4. Formic acid 

10. Which is the organic acids of natural source Amla?

    1. Citric acid

    2. Lactic acid

    3. Oxalic acid

    4. None of these