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Main constituent of limestone is

A. CaCO3

B. MgCO3

C. Na2CO3

D. CaSO4

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  1. Pick out the wrong statement.
  2. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
  3. Which one of the following is not likely to be a constituent of vegetable oils?
  4. __________ acid is an unsaturated fatty acid.
  5. Pick out the wrong statement pertaining to the soap manufacture.
  6. Epoxy resin
  7. Nicotine is
  8. Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from…
  9. Wet chlorine gas produced during electrolysis of brine is dehydrated by
  10. __________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
  11. Starting raw material for the manufacture of Maleic anhydride is
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  13. The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
  14. In the production of soda ash by Solvay process, the by-product is
  15. Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart…
  16. Coagulant is used __________ filtration.
  17. Which of the following is an explosive?
  18. Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
  19. A substance produced by a living organism and capable of anti-microbial activity is called a/an
  20. Resistance to fusion of the refractory under a steady rising temperature condition is called
  21. Fat dispersed in water is exemplified by
  22. Good quality of edible salt is obtained from brine by the process of
  23. Pick out the exothermic reaction out of the following:
  24. __________ is a thermosetting plastic.
  25. Maleic anhydride is produced by catalytic oxidation of
  26. Flexible foam (for mattresses) is usually made of
  27. Esterification reaction produces
  28. Kaolin is a/an
  29. Builders are added in soap to act as
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