Chrome tanning and vegetable tanning are done for

A. Light & heavy leather respectively

B. Heavy & light leather respectively

C. Both light & heavy leather

D. Neither light nor heavy leather

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Trinitrotoluene (TNT), an explosive, is made by the nitration of
  2. __________ is a polysaccharide.
  3. Calgon used in water treatment is chemically
  4. The basic constituent of vegetable oils is
  5. __________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.
  6. Wax is a
  7. Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
  8. The function of gypsum addition during cement making is to
  9. Catalyst used in the oxidation of benzene to produce Maleic anhydride is
  10. Plasticisers are added to paints to
  11. A good quality coal should have
  12. __________ is an ore of lead.
  13. A mineral is termed as 'ore', if
  14. Hydrazine is used in water treatment for the removal of
  15. Styrene is produced from ethyl benzene by the process of
  16. A unit operation is exemplified by the process of
  17. Styrene butadiene rubber (SBR) is
  18. Which of the following is not produced commercially from sea water?
  19. Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure…
  20. The amount of benzene present in pure Benzol is about __________ percent.
  21. Polycaprolactam is commercially known as
  22. Main constituents of Portland cement are calcium aluminate and
  23. Fat dispersed in water is exemplified by
  24. Comparing sulphate process with sulphite process, we find that __________ in the later.
  25. Pick out the wrong statement.
  26. Commonly used glass is known as the __________ glass.
  27. __________ of rubber decreases after its vulcanisation.
  28. The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by
  29. Which of the following is used as a coagulant in treating turbid water?
  30. The catalyst used in shift converter is