1. Methane gas is used in preparation of

2. the Major fraction in the CNG is

3. The colour of potassium dichromate salt is

4. Deficiency of vitamin A causes

5. the largest fresh water source of earth is

6. Vitamin D is Found in

7. the hard water contains the bicarbonates and sulphates of

8. pressure of system effects the equilibrium of

9. Petroleum is refined by the technique of

11. the important source of organic compounds is

12. Major compound present in natural gas is

13. the atmosphere contains almost the oxygen

14. Most chemical reactions show

15. Plants mainly composed of

16. Solvation is the process that makes

17. dehydration of alcohols with sulphuric acid yields

18. Fats perform the function of

19. the Number of essential amino acids are

20. A solution having Ph of 7.5 mean that it is

21. Pure water has the taste