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__________ Nature of hypo (sodium thiosulphate) makes it useful in photography.

A. Oxidising

B. Reducing

C. Complex forming

D. Photochemical

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

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  2. Permanent hardness of water can be removed by
  3. Bleaching of paper pulp is done with
  4. Dacron is a
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  6. Polycaprolactam is commercially known as
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  8. A good quality coal should have
  9. An oil is converted into fat by its
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  11. Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen…
  12. Poly Tetrafluoroethylene (P.T.F.E.) is known as
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  14. Zeolite is a/an
  15. Raw materials used for producing __________ cement does not contain iron oxide.
  16. In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because
  17. Pick out the wrong statement.
  18. Nylon-6 is manufactured from
  19. Lindane is
  20. Chemical formula of 'salt cake' is
  21. In an integrated steel plant, NH3 present in coke oven gas is normally recovered as
  22. Mannheim furnace is used in the manufacture of
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  24. Which of the following impurities in feed water for high pressure boiler is the most detrimental?
  25. Electric bulbs are made of __________ glass.
  26. Superior quality laboratory apparatus is made of the __________ glass having low thermal coefficient…
  27. Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic…
  28. Sucrose content in cane sugar may be around __________ percent.
  29. Sucrose is a
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