__________ is an ore of lead.

Related Questions

1. Starting raw material for the manufacture of Maleic anhydride is
2. Fermentator temperature during production of alcohol from molasses is around __________ °C.
3. Parathion and Malathion are
4. High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
5. Air used in aerobic fermentation must be sterilized, otherwise the
6. Saponification value/number of an oil or fat is a measure of its
7. Which of the following is not responsible for causing permanent hardness of water?
8. Styrene (a monomer for the production of polystyrene) is commercially produced by
9. Solvent extracted oil
10. Lithophane is
11. Very fine suspended and colloidal impurities are removed from water by a process called
12. The chamber process is
13. Terylene is
14. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen…
15. 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained…
16. Pick out the wrong statement.
17. Paper pulp produced by Kraft/sulphate process is
18. Boiling of water containing temporary hardness produces
19. The catalyst used in the manufacture of DDT is
20. __________ is a thermosetting plastic.
21. In the production of soda ash by Solvay process, the by-product is
22. Hydrazine is largely used
23. Carbon disulphide is mainly used in the production of
24. Nylon-6 is manufactured from
25. Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from…
26. Sucrose content in cane sugar may be around __________ percent.
27. Cumene (isopropyl benzene) is made by
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