Chemistry Mock Test series:8

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1. 
What happens to the pH of water when it is heated from 25°C to 100°C?

2. 
Which one of the following is known as Saltpeter?

3. 
What is the number of water molecules present in Mohr's salt?

4. 
Potassium nitrate is used in the production of-

5. 
What is Kelp?

6. 
Milk is an example of-

7. 
Which of the following electromagnetic waves has the longest wavelength?

8. 
What is the relationship between Oxygen and Ozone?

9. 
Which soft, silvery metallic element ionizes easily when heated or exposed to light and is present in atomic clocks?

10. 
A fruity smell is produced by the reaction of C₂H₅OH with which compound?

11. 
What metals does brass contain?

12. 
Which of the following does not react with water at all?

13. 
How is butter formed as a colloid?

14. 
What is the characteristic odor of garlic due to?

15. 
What governs the order of filling up orbitals in an atom?

16. 
What is the product formed when chlorobenzene is condensed with chloral in the presence of concentrated H₂SO₄?

17. 
What type of reaction is the conversion of Fe²⁺ to Fe³⁺?

18. 
Which compound possesses ionic, covalent, and coordinate bonds?

19. 
Which of the following alkali metals is the most reactive?

20. 
Which inorganic precipitate acts as a semipermeable membrane?

21. 
Which of the following elements has only two electrons in the K-shell?

22. 
What is the shape of the ethylene molecule (C₂H₄)?

23. 
Which law of thermodynamics introduces the concept of entropy?

24. 
Which carbohydrate serves as a reserve source of glucose in the body?

25. 
Ozone in the stratosphere is depleted by-

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