Chemistry Mock Test series:2

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1. 
One of the best solutions to get rid of non-biodegradable wastes is-

2. 
Which of the following metals has least melting point?

3. 
Heavy water is used as a coolant in nuclear reactors. Heavy water is-

4. 
Most of the explosion in mines occur due to the mixing of-

5. 
The most common lanthanide is-

6. 
When a helium atom loses an electron it becomes-

7. 
Which one of the following mixture is homogeneous?

8. 
Which of the following is responsible for permanent hardness of water?

9. 
Aluminium suface are often anodized. This means the deposition of a layer of-

10. 
What is the chemical name of the common salt?

11. 
The gas used to extinguish fire is-

12. 
In electro-refining, the pure metal is deposited on-

13. 
Which is the most reactive metal?

14. 
Breath analysers used by police to test drunken drivers works on the chemical basis of-

15. 
Alcohol obtained in the saponification process is-

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

17. 
The gas produced in marshy places due to decomposition of vegetation in-

18. 
The chemical used as a fixer/developer in photography-

19. 
In the reaction ZnO+C -> Zn+CO, 'C' acts as-

20. 
The word 'Insolation' means-

21. 
Which one of the following allotropes of the carbon is used in cutting and drilling -

22. 
The three basic components of an atom are-

23. 
Temporary hardness of water is due to the presence of-

24. 
Which one of the following gases has colour?

25. 
The first organic compound synthesized in the laboratory was-

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