In the laboratory carbon dioxide is prepared by:

reacting an acid and a carbonate

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heating a carbonate

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fermentation

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burning carbonaceous materials

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Solution

The correct option is A reacting an acid and a carbonate
In the laboratory carbon dioxide is prepared by reacting an acid and a carbonate.
$C a C O_{3} + 2 H C l \to C a C l_{2} + H_{2} O + C O_{2}$

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Similar questions

(a) Name the chemicals required for the preparation of carbon dioxide in the laboratory.

(b) How will you collect the gas?

(d) Why is sulphuric acid not used for the preparation of carbon dioxide in the laboratory?

Chlorine is prepared in the laboratory by treating manganese dioxide (MnO₂) with aqueous hydrochloric acid according to the reaction

4HCl₍_aq₎ + MnO₂₍_s₎ → 2H₂O₍_l₎ + MnCl₂₍_aq₎ + Cl₂₍_g₎

How many grams of HCl react with 5.0 g of manganese dioxide?

M O_{2})

M n O_{2} + 4 H C l \to M n C l_{2} + C l_{2} + 2 H_{2} O

5 g M n O_{2}

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