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The most reactive allotropic form of phosphorus is __________ phosphorus.

A. Red

B. Yellow

C. Violet

D. Black

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

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  1. Which of the following is not produced on commercial scale from sea water?
  2. Glauber's salt is chemically represented by
  3. Main constituent of limestone is
  4. The most stable allotropic form of phosphorous is the __________ phosphorous.
  5. Fatty material used in soap making is
  6. Salt is the basic raw material for the manufacture of
  7. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.
  8. Fermentation is adversely affected by the
  9. One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup…
  10. Pick out the endothermic reaction out of the following.
  11. Starting raw material for the manufacture of alum is
  12. Silicone is a/an
  13. Widely used method for the conditioning of boiler feed water is the
  14. Massecuite is
  15. Permanent hardness of water can be removed by
  16. Baking soda is chemically represented by
  17. Chemical name of 'alum' is
  18. Permanent hardness of water can be removed by
  19. Analgesic drugs are
  20. The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is
  21. Nickel is not used as a catalyst in the __________ reaction.
  22. A 'unit process' is exemplified by the
  23. Nylon-6 as compared to Nylon-66 is having higher
  24. Ethyl alcohol cannot be produced
  25. Roasting of metallurgical ores is done mainly to
  26. Cement setting under water employs a/an __________ process.
  27. Saponification value/number of an oil or fat is a measure of its
  28. Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury…
  29. The most reactive allotropic form of phosphorus is __________ phosphorus.
  30. Oleum produces fumes of