Chemistry Mcqs Set 45

Chemistry Mcqs Set 45

1. Which process involved in the separation of sand and water?
(a) decantation              
(b) sedimentation                
(c) filtration                   
(d) All the above
 
2. One litre of sea water contains____.__ g of salt
(a) 100                 
(b) 10                      
(c) 3.5                        
(d) 5.5
 
3. Which method is involved in the preparation of sugar from sugarcane juice_____
(a) filtration              
(b) evaporation                 
(c) Crystallisation            
(d) All the above
 
4. Which is the suitable method to separate soluble solid from liquid_____
(a) crystallization            
(b) sublimation                     
(c) sieving                  
(d) filtration
 
5. Which type of energy is used in Telecommunication ____
(a) Electrical                
(b) Mechanical                    
(c) Kinetic                   
(d) Potential
 
6. Which of the following energy is required for the lift to go up______
(a) Potential energy              
(b) Light energy           
(c) Kinetic energy                
(d) Solar energy
 
7. Which of the following energy is used in artificial satellites _______
(a) Petrol                    
(b) Liquid Hydrogen                     
(c) Solar cells               
(d) Electrical energy
 
8. Electric machines change electrical energy into _____ energy.
(a) solar                   
(b) chemical                      
(c) sound                      
(d) mechanical
 
9. Wind mills are for _____ generation.
(a) electric power               
(b) mechanical power         
(c) kinetic power         
(d) all the above
 
10. Solar energy is used to_______
(a) get rain                                                     
(b) obtain salt from sea water
(c) operate artificial satellites                      
(d) all the above