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Which of the following is not an abrasive material?

A. Bakelite

B. Pumice

C. Corundum

D. Carborundum

Correct Answer : A.


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  1. Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
  2. Na2CO3 is called
  3. Pick out the wrong statement.
  4. Sulphuric acid is mainly used in the __________ industry.
  5. The type of high refractive index glass used in optical instruments is __________ glass.
  6. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen…
  7. Absorption of SO3 in 97% H2SO4 is
  8. Extraction of __________ employs an electrolytic process.
  9. Coagulant is used __________ filtration.
  10. Fermentation of molasses to produce ethyl alcohol is done at __________ °C.
  11. CaSO4 . ½H2O is known as
  12. Cation exchanger is regenerated usually with
  13. Phenol formaldehyde is produced by condensation polymerisation. It is also known as
  14. Titanium dioxide is a/an __________ colour pigment.
  15. Vanillin is a type of
  16. Diaphragm electrolytic cell as compared to mercury electrolytic cell
  17. Which allotrope of sulphur is insoluble in carbon disulphide?
  18. Washing soda is chemically represented by
  19. The catalyst used in shift converter is
  20. __________ is a polysaccharide.
  21. Pick out the wrong statement.
  22. Poly Vinyl Chloride (P.V.C.) is a __________ material.
  23. Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4…
  24. Hydrogenation of oil/fat does not
  25. Pick out the endothermic reaction out of the following.
  26. Systemic insecticides
  27. Raw materials used for producing __________ cement does not contain iron oxide.
  28. What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in…
  29. Catalytic oxidation of toluene produces
  30. Which of the following is an endothermic reaction?