Suppose you have to determine the percentage of carbon dioxide in a sample of a gas available in a container. Which of the following is the best absorbing material for the 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

Calcium hydroxide readily absorbs $C O_{2}$ and forms $C a C O_{3}$ .

$C a (O H)_{2} + C O_{2} \to C a C O_{3} + H_{2} O$

$C O_{2}$ is an acidic oxide and thus it is effectively absorbed by a base like slaked lime $[C a (O H)_{2}]$ .

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Similar questions

Q. Write the balanced chemical equations for the following reactions:
(a)

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

(b)

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

Suppose you have to determine the percentage of carbon dioxide in a sample of gas available in a container. Which among the following is the best absorbing material for carbon dioxide?

Suppose you have to determine the percentage of carbon dioxide in a sample of a gas available in a container. Which of the following is the best absorbing material for the carbon dioxide?

Suppose you have to determine the percentage of carbon dioxide in a sample of a gas available in a container. Which is the best absorbing material that can be used to retrieve carbon dioxide.

50 g

of an impure calcium carbonate sample decomposes on heating to give carbon dioxide and

22.4 g

calcium oxide. The percentage purity of calcium carbonate in the sample is:

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Suppose you have to determine the percentage of carbon dioxide in a sample of a gas available in a container. Which of the following is the best absorbing material for the carbon dioxide?

The correct option is C Cold, solid calcium hydroxide Calcium hydroxide readily absorbs CO2 and forms CaCO3. Ca(OH)2 + CO2 → CaCO3 + H2O CO2 is an acidic oxide and thus it is effectively absorbed by a base like slaked lime[Ca(OH)2].

The correct option is C
Cold, solid calcium hydroxide

Calcium hydroxide readily absorbs $C O_{2}$ and forms $C a C O_{3}$ .

$C a (O H)_{2} + C O_{2} \to C a C O_{3} + H_{2} O$

$C O_{2}$ is an acidic oxide and thus it is effectively absorbed by a base like slaked lime $[C a (O H)_{2}]$ .