Which metal does not reacts with oxygen?

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Both Cu and Au.

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Solution

The correct option is B
Au

Cu reacts with oxygen to form $C u O$ , $C u O_{2}$ , $F e$ reacts with oxygen to form ${F e}_{2} O_{3}$ , $N a$ reacts with oxygen to form ${N a}_{2} O$ but Au doesn’t reacts with oxygen.

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Which metal does not reacts with oxygen?

The correct option is B Au Cu reacts with oxygen to form CuO,CuO2, Fe reacts with oxygen to form Fe2O3, Na reacts with oxygen to form Na2O but Au doesn’t reacts with oxygen.

The correct option is B
Au

Cu reacts with oxygen to form $C u O$ , $C u O_{2}$ , $F e$ reacts with oxygen to form ${F e}_{2} O_{3}$ , $N a$ reacts with oxygen to form ${N a}_{2} O$ but Au doesn’t reacts with oxygen.