Zinc oxide is reduced to Metallic Zinc by:a)Heating aloneb)Heating with Oxygenc)Heating with carbond)Hating with sulphurCorrect answer is 'C'. Can you explain this answer?

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Is it Based on the process of obtaining ores . .. ?

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Also a above in reactivity series aap reactivity series dekho clear ho jaayega

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While obtaining zinc from it's ore...we firstly heat zinc carbonate or zinc sulphate..as.. ( heat) ZnCO3 -----------> ZnO + CO2, Zn2S + O2 ----> Zno+ SO2 we get zinc oxide(ZnO) As zinc oxide is moderate reactive,so it doesn't break it's bond just on heating so we use carbon as it is a strong reducing agent.It itself oxidised by reducing zinc oxide.... Zno + C ------> Zn+CO .....

Answer

The Reduction of Zinc Oxide to Metallic Zinc

Zinc oxide (ZnO) is a compound made up of zinc and oxygen atoms. It is commonly used in various applications such as a pigment in paints, a component in rubber manufacturing, and as a sunscreen ingredient. However, in certain circumstances, it may be desirable to convert zinc oxide into metallic zinc. This reduction process can be achieved through heating with carbon.

1. Introduction
Zinc oxide can be reduced to metallic zinc through a chemical reaction that involves the transfer of electrons. This reduction reaction is commonly referred to as a redox reaction, where the zinc oxide is oxidized (loses oxygen) and the carbon is reduced (gains oxygen).

2. Heating with Carbon
Heating zinc oxide with carbon (in the form of charcoal or carbon monoxide) provides the necessary conditions for the reduction to occur. The carbon acts as a reducing agent, meaning it donates electrons to the zinc oxide to facilitate the reduction process.

3. Reaction Mechanism
The reduction of zinc oxide with carbon can be represented by the following chemical equation:

ZnO + C → Zn + CO

In this equation, zinc oxide reacts with carbon to produce metallic zinc and carbon monoxide gas. The carbon monoxide gas is released as a byproduct of the reaction.

4. Role of Heat
Heating is an essential component of this reduction process. The energy provided by heat allows the reactants to overcome the activation energy barrier and initiate the reaction. As the temperature increases, the reaction rate also increases, leading to a faster conversion of zinc oxide to metallic zinc.

5. Importance of Carbon
Carbon plays a crucial role in this reduction reaction. It acts as a reducing agent by providing electrons to the zinc oxide. The carbon atoms in the carbon source (charcoal or carbon monoxide) donate electrons to the zinc atoms in the zinc oxide, allowing them to undergo reduction and form metallic zinc.

Conclusion
In conclusion, zinc oxide can be reduced to metallic zinc through the process of heating with carbon. The carbon acts as a reducing agent, providing electrons to the zinc oxide and facilitating the reduction reaction. Heat is necessary to initiate the reaction and increase the reaction rate. This reduction process is widely used in various industrial applications where metallic zinc is required.

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