How are these impurities removed ?

Name the impurities present in hydrogen prepared in the laboratory. Write the balanced equation to show how these impurities be removed.

The process of heating the ore strongly in excess of air so that the volatile impurities are removed and the ore is changed to oxide is known as

Both cation and impurities can be removed from hard water by using

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

Wrought iron is the purest form of iron. Write a reation 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 galena (PbS) present as impurity removed from the ore of zinc blende?

Various impurities present in contact process are sulphur or pyrite dust, arsenious oxide arid sulphuric acid fog. They poison the catalyst. Dust impurities are removed in dusting tower by

Fill in the blanks with the correct choice. The undesired impurities present in the ores are called overset((i))("______") . To remove the volatile impurities from the ore, the overset((ii))("______") process is carried ot Flux combines with non-fusible impurities to form overset((iii))("______") . CaO acts as a overset((iv))("______") flux.