Which is the best absorbing material for carbon dioxide?

Heated copper oxide

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Cold, solid calcium chloride

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Cold, solid calcium hydroxide

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Heated charcoal

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Solution

The correct option is C
Cold, solid calcium hydroxide

$C O_{2}$ is a non-metallic oxide which is acidic in nature and thus, more effectively absorbed by an alkali (basic in nature). It is similar to an acid-base neutralisation reaction.

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Similar questions

Calcium hydroxide + Carbon dioxide \underset{}{\to} Calcium carbonate + Water

Aluminium + Copper chloride \underset{}{\to} Aluminium chloride + Copper

10.0 g

N a_{2} C O_{3}

1.62 g

10.0 g

N a_{2} C O_{3}

1.62 g

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