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Nitrogen is an essential component of

A. Mineral salts

B. Carbohydrates

C. Fats

D. Proteins

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

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  1. Varnish does not contain
  2. One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup…
  3. Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.
  4. Coke oven gas consists mainly of
  5. What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in…
  6. Which of the following contains least amount of N2?
  7. Chrome tanning and vegetable tanning are done for
  8. Sea weeds are an important source of
  9. Linde process of gas liquefaction employs
  10. Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about
  11. Bleaching of paper pulp is done with
  12. Roasting of metallurgical ores is done mainly to
  13. Permanent hardness of water can be removed by
  14. The catalyst used in the manufacture of DDT is
  15. Bakelite is chemically known as
  16. Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is…
  17. __________ Nature of hypo (sodium thiosulphate) makes it useful in photography.
  18. Presence of carbonaceous matter in the sewage
  19. Dacron is a
  20. Drinking (potable) water treatment does not involve
  21. Bordeaux mixture is a/an
  22. Flux addition during smelting of ore is done to
  23. Percentage of alcohol in beer may be around __________ percent.
  24. The most commonly used substance to speed up the sedimentation of sewage is
  25. __________ acid is an unsaturated fatty acid.
  26. Which of the following is not present in bagasse fibre?
  27. Silicone is a/an
  28. More than 100 percent of __________ is present in oleum.
  29. Magnesium and calcium __________ cause temporary hardness of water.
  30. __________ is not a constituent of gun powder.