Chemistry Mcqs Set 44

Chemistry Mcqs Set 44

1. a mixture of grain and husk are separated by_____
(a) sieving                
(b)winnowing                  
(c) condensation                
(d) evaporation
 
2. Which of the following is used to separate lighter particles from heavier particles_____
(a) Evaporation                
(b)Hand picking           
(c) Winnowing            
(d) Magnetic separation
 
3. Which of the following method id applied to remove the impurities such as bran, husk, stone and worms from flour_____
(a) sieving                   
(b) hand picking                    
(c) filtration                       
(d) evaporation
 
4. Iron filings present in rava and tea dust can be separated by______
(a) hand picking            
(b) magnetic separation                 
(c) sieving                
(d) evaporation
 
5. The clear liquid above the sediment is called______
(a) suspended liquid                  
(b) residue             
(c) supernatant liquid           
(d) filtrate
 
6. The dust particles which remain on the filter paper is called_____
(a) anode mud               
(b) filtrate                
(c) supernatant liquid              
(d) residue
 
7. In evaporation process, the change that takes place is______
(a) solid to vapour            
(b) vapour to solid           
(c) solid to liquid           
(d) liquid to vapour
 
8. By which method, is salt separated from sea water_____
(a) evaporation             
(b) sublimation           
(c) condensation               
(d) sedimentation
 
9. The process of conversion of vapour into liquid is called______
(a) evaporation               
(b) condensation             
(c) sublimation                    
(d) filtration
 
10. Formation of rain involves______
(a) evaporation                    
(b) condensation           
(c) both (a) and (b)           
(d) None of these