Chemistry Mock Test series:5

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1. 
Which one of the following groups of gases contribute to the Green House Effect?

2. 
Which gas emitted by power stations causes acid rain?

3. 
The heaviest naturally occurring elements is-

4. 
Which of the following has zero electron affinity-

5. 
What is the chemical name of Gammaxene?

6. 
The offending substance in the liquor tragedies leading to blindness etc. is-

7. 
In the ordinary fire extinguisher, carbon dioxide is generated by the reaction of-

8. 
What is used for writing on glass-

9. 
Gypsum is used for improvement of-

10. 
The most electronegative element among the following is-

11. 
Phosphorus is an essential constituent of-

12. 
Heating of a ore below its melting point in the absence of air is known as-

13. 
Which of the following has highest frequency?

14. 
The inert gas used as beacon light is-

15. 
By what factor is a solution with pH=2 more acidic than one with pH=6?

16. 
Most commonly used bleaching agent is-

17. 
Which one of the following petroleum refinery products has the lowest boiling point-

18. 
The increasing abundance of green house gases in atmosphere has led to the following effect except-

19. 
The radioactivity was discovered in 1898 AD by-

20. 
Chemically vermillion is-

21. 
The product of equivalent weight and valency of an element is equal to-

22. 
Natural rubber is a polymer of-

23. 
An atom has 7 electrons in its M-shell and contains 18 neutrons in its nucleus. What is its mass number?

24. 
Which of the following is used as a lubricant?

25. 
Tritium is an isotope of-

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