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  • Which one of alkali metal, forms only, the normal oxide,  on he

Which one of alkali metal, forms only, the normal oxide, \mathrm{M}_2 \mathrm{O} on heating in air?

 

Option: 1

\mathrm{Rb}
 


Option: 2

\mathrm{k}


Option: 3

\mathrm{Li}
 


Option: 4

\mathrm{Na}.


Answers (1)

best_answer

When heated with oxygen forms different types of oxide.

\begin{aligned} \mathrm{Li} & \rightarrow \mathrm{Li}_2 \mathrm{O} \text { (lithium oxide) } \\ \mathrm{K}, \mathrm{Rb}, \mathrm{C} \rightarrow & \longrightarrow \text { superoxide. } \\ 2 \mathrm{Li}+\frac{1}{2} \mathrm{O}_2 & \longrightarrow \mathrm{Li}_2 \mathrm{O} \end{aligned}

Option (3) is correct.

Posted by

Sanket Gandhi

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