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(ix) It is possible to extract a metal f...

(ix) It is possible to extract a metal from its oxide it the free energy of formation of the oxide of the reducing agent is lower than that of the oxidising agent.

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To determine whether the statement is true or false, we need to analyze the conditions under which a metal can be extracted from its oxide using a reducing agent. ### Step-by-Step Solution: 1. **Understanding the Statement**: The statement claims that a metal can be extracted from its oxide if the free energy of formation of the oxide of the reducing agent is lower than that of the oxidizing agent. 2. **Defining the Reducing and Oxidizing Agents**: - Let’s denote the reducing agent as \( M \) and its oxide as \( MO_2 \). - Let’s denote the oxidizing agent as \( K \) and its oxide as \( KO_2 \). 3. **Free Energy of Formation**: - The free energy of formation for the oxide of the reducing agent is represented as \( \Delta G_1 \) for \( MO_2 \). - The free energy of formation for the oxide of the oxidizing agent is represented as \( \Delta G_2 \) for \( KO_2 \). 4. **Feasibility of the Reaction**: - For \( M \) to reduce \( KO_2 \) (the oxidizing agent), the reaction must be spontaneous. This is determined by the Gibbs free energy change. - The reaction is spontaneous if the change in Gibbs free energy (\( \Delta G \)) is negative. 5. **Condition for Spontaneity**: - The condition for \( M \) to act as a reducing agent and \( K \) to act as an oxidizing agent is that the free energy of formation of the oxide of the reducing agent must be more negative than that of the oxidizing agent: \[ \Delta G_1 < \Delta G_2 \] - This implies that \( | \Delta G_1 | > | \Delta G_2 | \) (the absolute value of \( \Delta G_1 \) should be greater than that of \( \Delta G_2 \)). 6. **Conclusion**: - Since the original statement claims the opposite (that \( \Delta G_1 \) should be lower), the statement is **false**. ### Final Answer: The statement is **false**.

To determine whether the statement is true or false, we need to analyze the conditions under which a metal can be extracted from its oxide using a reducing agent. ### Step-by-Step Solution: 1. **Understanding the Statement**: The statement claims that a metal can be extracted from its oxide if the free energy of formation of the oxide of the reducing agent is lower than that of the oxidizing agent. 2. **Defining the Reducing and Oxidizing Agents**: - Let’s denote the reducing agent as \( M \) and its oxide as \( MO_2 \). ...
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CENGAGE CHEMISTRY ENGLISH-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exs 1.1 (True Orfalse Statement)
  1. True or false statements : (i) Sodium cyanide is used as a depresent...

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  2. (ii) Iron can reduce alumina to aluminium metal.

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  3. (iii) Substances which convert infusible impurities present in ores in...

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  4. (iv) Zirconium is best refined by zonc refining method.

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  5. (v) Impurties are more soluble in the melt than in the solid state of ...

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  6. (vi) In Bessenmerisation of sulphide ore of copper, there is self-redu...

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  7. (vii) Mercury is transported on containers made of iron.

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  8. (viii)The ore CuFeS(2) is used to extract iron metal.

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  9. (ix) It is possible to extract a metal from its oxide it the free ener...

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  10. Fill in the blanks : (a) Pig iron in manufactured by using furnace.

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  11. (b) Platinum, indium etc. are known as noble metals because they are t...

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  12. ( c) iron is the purest form of iron.

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  13. (d) Passivity of iron is due to the formation of thin film of on its s...

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  14. ( e) Phenimenon of removing layers of basic oxides from metals before ...

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  15. In the manufacture of iron from hematite, limestone is added to act as...

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  16. (g) An ore of tin containing FeCrO(4) is concentrated by .

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  17. (h) In froth process, the ore particles float because their surface is...

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  18. Coating of zinc on iron objects is commonly known as .

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  19. In electrorefining the impure metal is made

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