Chemistry Mock Test series:2

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1. 
In the reaction ZnO+C -> Zn+CO, 'C' acts as-

2. 
Which one of the following mixture is homogeneous?

3. 
Aluminium suface are often anodized. This means the deposition of a layer of-

4. 
What is the chemical name of the common salt?

5. 
One of the best solutions to get rid of non-biodegradable wastes is-

6. 
Alcohol obtained in the saponification process is-

7. 
The chemical used as a fixer/developer in photography-

8. 
Which is the most reactive metal?

9. 
The gas used to extinguish fire is-

10. 
The gas produced in marshy places due to decomposition of vegetation in-

11. 
Heavy water is used as a coolant in nuclear reactors. Heavy water is-

12. 
Which of the following metals has least melting point?

13. 
Most of the explosion in mines occur due to the mixing of-

14. 
The first organic compound synthesized in the laboratory was-

15. 
Which one of the following gases has colour?

16. 
Which one of the following is responsible for blue baby syndrome?

17. 
Which of the following is responsible for permanent hardness of water?

18. 
The three basic components of an atom are-

19. 
Breath analysers used by police to test drunken drivers works on the chemical basis of-

20. 
Which one of the following allotropes of the carbon is used in cutting and drilling -

21. 
Temporary hardness of water is due to the presence of-

22. 
The word 'Insolation' means-

23. 
The most common lanthanide is-

24. 
When a helium atom loses an electron it becomes-

25. 
In electro-refining, the pure metal is deposited on-

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