1. the important source of organic compounds is

2. Methane gas is used in preparation of

3. Major compound present in natural gas is

4. pressure of system effects the equilibrium of

5. Plants mainly composed of

6. the hard water contains the bicarbonates and sulphates of

7. Vitamin D is Found in

8. Pure water has the taste

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

10. Petroleum is refined by the technique of

11. Deficiency of vitamin A causes

12. dehydration of alcohols with sulphuric acid yields

13. Fats perform the function of

14. the atmosphere contains almost the oxygen

15. Solvation is the process that makes

16. the Number of essential amino acids are

17. The colour of potassium dichromate salt is

18. the largest fresh water source of earth is

19. Most chemical reactions show

21. the Major fraction in the CNG is