Question

Which of the following process involves smelting? 

Solution

Correct option is

When concentrated ore is mixed with coke and flux and heated in the presence of air at high temperature, impurities get removed. This process is called smelting. Actually, it is a reduction process, in which oxide is reduced to metal. Therefore, following process will involve smelting

                                                                           

SIMILAR QUESTIONS

Q1

 

Lead is extracted from galena (PbS), either by following ways.  

   

Auto-reduction process is                         

Q2

The chemical process in the production of steel from haematite ore involves

Q3

 

FeCr2O4 (chromite) is a good source of chromium and its compounds like Na2CrO4 and Na2Cr2O7

   

   

    

     

Identify A

Q4

Consider  (CuO) = –129.7 kJ mol–1 kJ mol –1and  The better reducing agent for the reduction of CuO is

Q5

In which of the following isolations no reducting agent is required?

Q6

Which of the following pairs of oxides cannot be reduced by carbon to give the respective metals?   

Q7

Titanium containing mineral found in our country is 

Q8

Ore pitch blende is main source of 

Q9

Metal which can be extracted from all the three dolomite, magnesite and carnallite is

Q10

Chile salt petre is an ore of