Li with $O_{2}$ forms _ , as compared to other alkali metals which with oxygen forms ____ .

Monoxide, peroxides

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Monoxides, superoxides

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Peroxides, superoxides

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Both A and B

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Solution

The correct option is D Both A and B
Lithium reacts with oxygen to form lithium monoxide, $L i_{2} O$ , whereas other alkali metals react with oxygen to form peroxides $(M_{2} O_{2})$ and superoxides $(M O_{2}) .$ Lithium cannot form other two oxides because of its small size.

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Li with O2 forms _______ , as compared to other alkali metals which with oxygen forms __________ .

The correct option is D Both A and BLithium reacts with oxygen to form lithium monoxide, Li2O, whereas other alkali metals react with oxygen to form peroxides (M2O2) and superoxides (MO2). Lithium cannot form other two oxides because of its small size.

Li with $O_{2}$ forms _ , as compared to other alkali metals which with oxygen forms ____ .

The correct option is D Both A and B
Lithium reacts with oxygen to form lithium monoxide, $L i_{2} O$ , whereas other alkali metals react with oxygen to form peroxides $(M_{2} O_{2})$ and superoxides $(M O_{2}) .$ Lithium cannot form other two oxides because of its small size.