__________ iron is the purest form of iron.

A. Cast

B. Wrought

C. Pig

D. High silicon

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  1. The main use of activated carbon in water treatment is to control
  2. Fatty material used in soap making is
  3. Dechlorination of treated water is necessary to
  4. Systemic insecticides
  5. Free alkali in a toilet soap is __________ that in a laundry shop.
  6. In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable…
  7. Commonly used glass is known as the __________ glass.
  8. Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic…
  9. Fourdrinier machine is used in the manufacture of
  10. Which of the following is an organometallic compound?
  11. Aryl benzene sulphonate (ABS) is a
  12. Glauber's salt is chemically represented by
  13. Sucrose is a
  14. Salt is added in the kettle during soap manufacture to separate
  15. The enzyme which converts starch into the disaccharides maltose is
  16. The catalyst used in the manufacture of DDT is
  17. Sand and __________ is fused at 1300°C, to produce sodium silicate.
  18. Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium…
  19. In the production of soda ash by Solvay process, the by-product is
  20. Nickel is not used as a catalyst in the
  21. Nitrogen is an essential component of
  22. Most widely and commonly used coagulant for the removal of suspended impurities in water is
  23. Main constituents of Portland cement are calcium aluminate and
  24. Thermal pyrolysis of ethylene dichloride produces
  25. 90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained…
  26. Sugar content in sugarcane on cane basis is about __________ percent by weight.
  27. __________ is not a constituent of gun powder.
  28. Which of the following is not present in bagasse fibre?
  29. Hydrophilic group of a soap or detergent solution is
  30. Cellulose percentage in bamboo fibre is about