Carbon is used for reduction of some metal oxides.

True

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False

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Solution

The correct option is A
True

Carbon forms carbon dioxide when it reacts with some metal oxides.
Metal oxides are reduced to corresponding metals by using suitable reducing agents such as carbon. For example, when zinc oxide is heated with carbon, it is reduced to metallic zinc.
$Z n O + C \to Z n + C O_{2}$

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Similar questions

Q. Carbon is used for the reduction of some metal oxides.

Q. Carbon reduction is not used to obtain certain metals from their ores because
1. Carbon cannot reduce certain oxides, sulphides, etc
2. It can react with the metals to form carbides
3. Temperatures required for the reduction are too high
4. It is expensive compared to the alternatives for some ores

Q. (i) An aqueous solution of sodium chloride is not used for electrolytic reduction of sodium metal. Why?
(ii) For the reduction of a metal oxide, suggest a reducing agent other than carbon.

Q. Reduction of metal oxide by excess carbon at high temperature is a method for the commercial preparation of some metals. This method can be successfully applied in the case of:

(a) For the reduction of a metal oxide, suggest a reducing agent other than carbon.
(b) Explain why an aqueous solution of sodium chloride is not used for the electrolytic extraction of sodium metal.

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Carbon is used for reduction of some metal oxides.

The correct option is A True Carbon forms carbon dioxide when it reacts with some metal oxides. Metal oxides are reduced to corresponding metals by using suitable reducing agents such as carbon. For example, when zinc oxide is heated with carbon, it is reduced to metallic zinc. ZnO+C→Zn+CO2