1. the largest fresh water source of earth is

2. the hard water contains the bicarbonates and sulphates of

4. the important source of organic compounds is

5. Petroleum is refined by the technique of

6. The colour of potassium dichromate salt is

7. Major compound present in natural gas is

8. Fats perform the function of

9. Plants mainly composed of

10. Pure water has the taste

11. the Number of essential amino acids are

12. the Major fraction in the CNG is

13. Vitamin D is Found in

14. Most chemical reactions show

15. Solvation is the process that makes

16. Methane gas is used in preparation of

17. dehydration of alcohols with sulphuric acid yields

18. pressure of system effects the equilibrium of

19. the atmosphere contains almost the oxygen

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

21. Deficiency of vitamin A causes