Chemical Industries

A mixture of Cu₂S and FeS called matte is produced in one of the metallurgical operations in the extraction of copper. The name of this operation is:

 
 
 
 

Which of the following is not an example of a non-metal?

 
 
 
 

The compound that is commonly known as quicklime is:

 
 
 
 

Which of the following is an example of an acid used in the laboratory?

 
 
 
 

Calcination is the process in which sodium hydrogen carbonate is heated to get sodium carbonate. Which is not obtained in this process?

 
 
 
 

In electrolytic refining of copper, _______ is used as anode.

 
 
 
 

The process of removing impurities from crude oil is known as:

 
 
 
 

Which of the following steps is not used in the extraction process of metals?

 
 
 
 

What happens when ammonium carbamate is distilled with steam?

 
 
 
 

The naturally occurring metallic compounds are called as

 
 
 
 

Which of the following is not a raw material for the manufacture of soda ash?

 
 
 
 

The process of separating components of a mixture based on their boiling points is called:

 
 
 
 

Which of the following metals is commonly used for making electrical wires?

 
 
 
 

Percentage of nitrogen in urea is

 
 
 
 

Which of the following is used to test the presence of hydrogen gas?

 
 
 
 

Chemical formula of slaked lime is

 
 
 
 

Which of the following is the primary component of natural gas?

 
 
 
 

The formula of sodium bicarbonate is:

 
 
 
 

The separation of minerals from gangue is called concentration. Which of the following methods is used for concentration?

 
 
 
 

Question 1 of 19

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  4. ENVIRONMENTAL CHEMISTRY-WATER
  5. ORGANIC CHEMISTRY
  6. BIOCHEMISTRY
  7. EMPIRRICAL DATA COLLECTION AND ANALYSIS
  8. QUALITATIVE ANALYSIS
  9. Define chemical equilibrium with example
  10. What is meant by chemical equilibrium?
  11. Differentiate between reversible and irreversible reactions?
  12. State Le-Chatelier’s principle.
  13. What is the significance of the equilibrium constant (Kc)?
  14. Why does a catalyst not affect the position of equilibrium?
  15. What happens to the equilibrium position if the concentration of a reactant is increased?
  16. What is the effect of decreasing pressure on a gaseous equilibrium system?
  17. What is dynamic equilibrium?
  18. How does temperature affect the equilibrium constant?
  19. State law of mass action?
  20. State the ways that equilibrium can be recognized.