11. Match the sources in Column II with the product of Column I.
Column I (Product)
Column II (Source)
a. Formic acid
1. Lemon
b. Citric acid
2. Tamarind
c. Tartaric acid
3. Ants
| Column I (Product) | Column II (Source) |
| a. Formic acid | 1. Lemon |
| b. Citric acid | 2. Tamarind |
| c. Tartaric acid | 3. Ants |
12. The litmus solution is extracted from the . . . . . . . .
13. If the pH of a salt is zero, it is a salt of . . . . . . . .
14. What is the dominant chemical present in vinegar?
15. Milk tastes sour when it is left in open for sometime. This happens due to the formation of
16. Which one of the following is an amphoteric oxide?
17. Which one of the following does not contain COOH group?
18. Which one of the following is a similarity between acids and bases?
19. When we cut an onion, the synthase enzyme converts the amino acid sulfoxide of the onion into which acid?
20. . . . . . . . . can dissolve gold.
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