By which process copper is refined ____________?

Related Mcqs:

1. Copper can be converted into gold by ?

   A. Artificial radioactivity
   B. heating
   C. Electroplating
   D. Chemical reaction

2. Copper is used in the production of___________?

   A. Brick kilns
   B. Children toys
   C. Kitchen utilities
   D. Electric wires

3. The source of the Sun’s energy is the process of ____________?

   A. Photoelectric emission
   B. Nuclear fission
   C. Nuclear fusion
   D. Thermionic emission

   Submitted by: Abid Hussain

4. The process in which seed grows in to a new plant is called ______?

   A. Fertilization
   B. Germination
   C. Vernalization
   D. None of these

   Submitted by: Rafi Umar

5. During which process of energy exchange does cold air displace warmer air?

   A. Convection 
   B.  Radiation
   C.  Conduction
   D.  None of these

   Submitted by: Rida

6. The process by which kidney stones are crushed with shock waves is called?

   A. Laparoscopy
   B. Dementia
   C. Lithotripsy
   D. None of these

   Submitted by: Mansoor Ahmed Suhag

7. A definite area or a space where some thermodynamic process takes place is known as?

   A. Thermodynamic system
   B. Thermodynamic cycle
   C. Thermodynamic process
   D. Thermodynamic law

   Submitted by: Muhammad Baqir Naich

8. The process whereby energy is dissipated from the oscillating system is called__________?

   A. Oscillation
   B. Damping
   C. Resonance
   D. None of these

   Submitted by: Malik Asghar Hussain

9. The process of converting wet waste to manure is___________?

   A. Metabolism
   B. Conservation
   C. Incineration
   D. Composting

   Submitted by: Malik Asghar Hussain

10. The process which is essential for continuing and survival of species is __________?

    A. Digestion
    B. Respiration
    C. Reproduction
    D. Excretion

    Submitted by: Abid Hussain