1. Methane gas is used in preparation of

2. Vitamin D is Found in

3. Most chemical reactions show

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

5. The colour of potassium dichromate salt is

6. the atmosphere contains almost the oxygen

7. pressure of system effects the equilibrium of

8. Major compound present in natural gas is

9. the largest fresh water source of earth is

10. Plants mainly composed of

11. the Number of essential amino acids are

12. Petroleum is refined by the technique of

13. Fats perform the function of

14. Solvation is the process that makes

15. the important source of organic compounds is

16. the hard water contains the bicarbonates and sulphates of

17. Pure water has the taste

18. dehydration of alcohols with sulphuric acid yields

20. Deficiency of vitamin A causes

21. the Major fraction in the CNG is