Question
How will you convert, boric acid into,
  1. Boron trifluoride
  2. Borax

Answer

1. Boron trifluoride :
Boric acid reacts with calcium fluoride in presence of cone. Sulphuric acid and gives boron trifluoride.
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2. Borax:
Boric acid, when heated with soda ash it gives borax.
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