Select the correct option regarding the properties of dioxygen?
A
Dioxygen never reacts with metals.
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B
Dioxygen is diamagnetic in nature.
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C
Combination of dioxygen with other elements is highly exothermic process.
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D
Dioxygen liquefies at 55 K and freezes at 90 K.
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Solution
The correct option is C Combination of dioxygen with other elements is highly exothermic process. Dioxygen reacts with metals and is paramagnetic. It combines with other elements to form oxides where the reaction is highly exothermic.