(A) $KO_2$ (potassium superoxide) is used in oxygen cylinders because it reacts with $CO_2$ to produce $O_2$ and potassium carbonate $(K_2CO_3)$.The c

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Absorbs $CO_2$ and increases $O_2$ content

(A) $KO_2$ (potassium superoxide) is used in oxygen cylinders because it reacts with $CO_2$ to produce $O_2$ and potassium carbonate $(K_2CO_3)$.The chemical reaction is: $4KO_2 + 2CO_2 \rightarrow 2K_2CO_3 + 3O_2$.This process simultaneously removes $CO_2$ and replenishes $O_2$ levels.

Class 11 Chemistry s-Block Elements Alkali metals

Medium

$KO_2$ (potassium superoxide) is used in oxygen cylinders in space and submarines because it

AIEEE 2002 All AIEEE

A
Absorbs $CO_2$ and increases $O_2$ content
B
Eliminates moisture
C
Absorbs $CO_2$
D
Produces ozone

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Class 11 Questions

Class 11

Chemistry Questions

Chapter

s-Block Elements

Subtopic

Alkali metals

Previous Year

AIEEE 2002 Paper All AIEEE years →

Which of the following alkali metal ions has the lowest ionic mobility in an aqueous solution?

Easy

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Match Column $-I$ with Column $-II$ :

Column $-I$ Column $-II$

$(a)$. Super oxide $(p)$. $Na_2O_2$

$(b)$. Peroxide $(q)$. $CO_2$

$(c)$. Dioxide $(r)$. $C_3O_2$

$(d)$. Sub oxide $(s)$. $CsO_2$

Medium

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How does the ionization energy of the elements of Group $1$ change as we move down the group?

Easy

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Why are alkali metals not found in nature?

Easy

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Which of the following properties is $NOT$ correct for alkali metals?

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Column $-I$	Column $-II$
$(a)$. Super oxide	$(p)$. $Na_2O_2$
$(b)$. Peroxide	$(q)$. $CO_2$
$(c)$. Dioxide	$(r)$. $C_3O_2$
$(d)$. Sub oxide	$(s)$. $CsO_2$

$KO_2$ (potassium superoxide) is used in oxygen cylinders in space and submarines because it

Similar Questions

Which of the following alkali metal ions has the lowest ionic mobility in an aqueous solution?

Match Column $-I$ with Column $-II$ : Column $-I$ Column $-II$ $(a)$. Super oxide $(p)$. $Na_2O_2$ $(b)$. Peroxide $(q)$. $CO_2$ $(c)$. Dioxide $(r)$. $C_3O_2$ $(d)$. Sub oxide $(s)$. $CsO_2$

How does the ionization energy of the elements of Group $1$ change as we move down the group?

Why are alkali metals not found in nature?

Which of the following properties is $NOT$ correct for alkali metals?

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Match Column $-I$ with Column $-II$ :

Column $-I$ Column $-II$

$(a)$. Super oxide $(p)$. $Na_2O_2$

$(b)$. Peroxide $(q)$. $CO_2$

$(c)$. Dioxide $(r)$. $C_3O_2$

$(d)$. Sub oxide $(s)$. $CsO_2$