मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

For the reduction of FeO at the temperature corresponding to point D, which of the following statements is correct? - Chemistry

Advertisements
Advertisements

प्रश्न

For the reduction of \[\ce{FeO}\] at the temperature corresponding to point D, which of the following statements is correct?

पर्याय

  • ∆G value for the overall reduction reaction with carbon monoxide is zero.

  • ∆G value for the overall reduction reaction with a mixture of 1 mol carbon and 1 mol oxygen is positive.

  • ∆G value for the overall reduction reaction with a mixture of 2 mol carbon and 1 mol oxygen will be positive.

  • ∆G value for the overall reduction reaction with carbon monoxide is negative.

MCQ
Advertisements

उत्तर

∆G value for the overall reduction reaction with carbon monoxide is zero.

Explanation:

At point D, ∆g curve for the formation of \[\ce{CO2}\] from \[\ce{CO}\] and \[\ce{FeO}\] from \[\ce{Fe}\] intersect each other therefore, overall reduction of \[\ce{FeO}\] with \[\ce{CO}\] is zero.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: General Principle and Processes of Isolation of Elements - Multiple Choice Questions (Type - I) [पृष्ठ ८०]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 6 General Principle and Processes of Isolation of Elements
Multiple Choice Questions (Type - I) | Q 13 | पृष्ठ ८०

संबंधित प्रश्‍न

Is it true that under certain conditions, Mg can reduce SiO2 and Si can reduce MgO? What are those conditions?


Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.


Write chemical reactions taking place in the extraction of zinc from zinc blende.


State the role of silica in the metallurgy of copper.


The impurity that is added externally to remove the impurity already present in the ore is known as ____________.


In the metallurgy of aluminium ______.


Below point ‘A’ \[\ce{FeO}\] can ______.


For the metallurgical process of which of the ores calcined ore can be reduced by carbon?

(i) Haematite

(ii) Calamine

(iii) Iron pyrites

(iv) Sphalerite


Wrought iron is the purest form of iron. Write a reaction used for the preparation of wrought iron from cast iron. How can the impurities of sulphur, silicon and phosphorus be removed from cast iron?


How is copper extracted from low grade copper ores?


The purest form of iron is prepared by oxidising impurities from cast iron in a reverberatory furnace. Which iron ore is used to line the furnace? Explain by giving reaction.


Why is sulphide ore of copper heated in a furnace after mixing with silica?


Explain the following:

Generally sulphide ores are converted into oxides before reduction.


Explain the following:

Carbon and hydrogen are not used as reducing agents at high temperatures.


A cuprous ore among the following is:-


Assertion: For the extraction of iron, haematite ore is used.

Reason: Haematite is a carbonate ore of iron.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×