Multiple choice

Which of the following lithium salts is used in commercial secondary batteries?

  1. Lithium 12-hydroxystearate

  2. Lithium aluminium hydride

  3. Lithium bis(trimethylsilyl)amide

  4. Lithium hexafluorophosphate
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D Correct answer
Explanation

Lithium hexafluorophosphate is an inorganic compound with the formula LiPF6. This white crystalline powder is used in commercial secondary batteries, an application that exploits its high solubility in nonpolar solvents. Specifically, solutions of lithium hexafluorophosphate in propylene carbonate with dimethoxyethane serves as an electrolyte in lithium batteries.

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