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Explain the following (a) CO(2) is a...

Explain the following
(a) `CO_(2)` is a better reducing agent below 710 K whereas CO is a better reducing agent above 710 K .
(b) Generally sulphide ores are converted into oxides before reduction.
( c) Silica is added to the sulphide ore of copper in the reverberatory furnance.
(d) Carbon and hydrogen are not used as reducing agents at high temperature.
(e) Vapour phase refining method is used for the purification of Ti

Answer

Step by step text solution for Explain the following (a) CO_(2) is a better reducing agent below 710 K whereas CO is a better reducing agent above 710 K . (b) Generally sulphide ores are converted into oxides before reduction. ( c) Silica is added to the sulphide ore of copper in the reverberatory furnance. (d) Carbon and hydrogen are not used as reducing agents at high temperature. (e) Vapour phase refining method is used for the purification of Ti by CHEMISTRY experts to help you in doubts & scoring excellent marks in Class 12 exams.

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Explore conceptually related problems

Explain the following : (a) CO is a better reducing agent below 983 K whereas C is a better reducing agent above 983 K (b)Generally sulphide ores are converted into oxides before reduction (c ) Silica is added to the sulphide ore of copper in the reverberatory furnace (d) Carbon and hydrogen are not used as reucing agents at high temperatures. (e) Vapour phase refining method is used for the purification of Ti.

Why are sulphide ores converted to oxide before reduction?

Knowledge Check

  • Silica is added to the sulphide ore of copper in reverberatory furnace because

    A
    sulphide ore of copper contains iron as impurity which is removed as iron slag.
    B
    silica reacts with `Cu_(2)O` to form slag
    C
    silica helps in reduction of `Cu_(2)O ` to Cu
    D
    sulphide ore of copper is separated from iron by reacting with silica.

  • A sulphide ore is first converted into its oxide before reduction. This is done because :

    A
    a sulphide ore cannot be reduced to metal at all
    B
    no reducing agent is found suitable for reducing a sulphide ore
    C
    the enthalpy of formation of `CO_(2)` is more than that of `CS_(2)`
    D
    a metal oxide is generally less stable than the metal sulphide

  • A sulphide ore is first converted into its oxide before reduction. This is done because :

    A
    a sulphide ore cannot be reduced to metal at all
    B
    no reducing agent is found suitable for reducing a sulphide ore
    C
    the enthalpy of formation of `CO_(2)` is more than that of `CS_(2)`
    D
    a metal oxide is generally less stable than the metal sulphide

    • Similar Questions

    Explore conceptually related problems

    Why are sulphide ores converted to oxide before reduction?

    CO is used as a reducing agent .

    Why are sulphide ores converted to oxide form before reduction to metal ?

    Which of the following halogen acid is better reducing agent ?

    Assertion : Sulphide ores are converted to oxides before reduction. Reason : Oxides are easier to reduce.

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