Question

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

Solution

Correct option is

Hydrogen

 

   

   

             

            

  

  

            

            

More negative value of ∆Go for reaction (II) indicates that H2 is better reducing agent.

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

Which of the following process involves smelting? 

Q4

 

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

   

   

    

     

Identify A

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