Select a ferromagnetic material from the following?
A
Dioxygen
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B
Chromium (IV) oxide
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C
Benzene
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D
Dihydrogen monoxide
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Solution
The correct option is B Chromium (IV) oxide Chromium (IV) dioxide is considered to be ferromagnetic. The ferromagnetic properties of these compounds allow them to be used in data tape, a way to store information.