Artificial pacemakers are used to treat arrhythmias by replacing the natural electrical impulses created by the S-A node.Which of the following compounds is used by long life batteries as required artificial pacemakers?
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Lithium chloride
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Lithium hydride
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Lithium hydroxide
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Lithium iodide
D
Correct answer
Explanation
Lithium iodide is a compound of lithium and iodine. When exposed to air, it becomes yellow in colour due to the oxidation of iodide to iodine. It is used as an electrolyte for high temperature batteries. It is also used for long life batteries as required by artificial pacemakers.