Sodium is heated in air at ${300^ \circ }C$ to form $X.X$ absorbs ${\rm{C}}{{\rm{O}}_2}$ and forms ${\rm{N}}{{\rm{a}}_2}{\rm{C}}{{\rm{O}}_3}$ and Y? Which of the following is Y?

NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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Application +4 | -1

Sodium is heated in air at

{300^ \circ }C

to form

X.X

absorbs

\mathrm{C}{\mathrm{O}_2}

and forms

\mathrm{N}{\mathrm{a}_2}\mathrm{C}{\mathrm{O}_3}

and Y? Which of the following is Y?

View answer and explanation

Correct option: B

{\mathrm{O}_2}

Option B (

{\mathrm{O}_2}

) is correct because sodium reacts with oxygen at high temperatures to form sodium peroxide (

Na_2O_2

), which then reacts with

CO_2

to produce sodium carbonate and oxygen.