Multiple choice

Among the following which one is used as a brazing flux for aluminium in automobile parts?

  1. Lithium borohydride

  2. Lithium bromide

  3. Lithium carbide

  4. Lithium chloride
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D Correct answer
Explanation

Lithium chloride is produced by treatment of lithium carbonate with hydrochloric acid. Lithium chloride is mainly used for the production of lithium metal by electrolysis of a LiCl/KCl melt at 600 °C. LiCl is also used as a brazing flux for aluminium in automobile parts. It is used as a desiccant for drying air streams.

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