Chalcopyrite is the main ore of

Related Questions

1. Which of the following processes can remove both temporary as well as permanent hardness of water?
2. Litharge is
3. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
4. Phenol formaldehyde
5. Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.
6. The major constituents of glass are
7. Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
8. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers…
9. The catalyst used in shift converter is
10. Widely used method for the conditioning of boiler feed water is the
11. Rotary kiln is not involved in the production of
12. Carboxymethyl cellulose (CMC) is added in detergents to act as a/an
13. The terminology 'BTX' used in coal tar distillation industry refers to
14. Potassium is kept & transported under
15. Reaction of an alcohol with organic acid is called the __________ reaction.
16. A 'unit process' is exemplified by the
17. Sulphur addition in soap is done to
18. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?
19. Polyvinyl chloride (PVC) is
20. Graphite is a/an
21. Bleaching of paper pulp is done with
22. Which of the following is not a product of coal tar distillation?
23. Phenol formaldehyde is produced by condensation polymerisation. It is also known as
24. Which one of the following is not likely to be a constituent of vegetable oils?
25. Permanent hardness of water is due to the presence of calcium & magnesium
26. Most widely and commonly used coagulant for the removal of suspended impurities in water is
27. Which one of the following is not an elastomer?
28. Function of sodium thiosulphate (hypo) in development of photographic film/plate is to
29. An oil is converted into fat by its
30. Salt is the basic raw material for the manufacture of

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