Chemistry Mcqs Set 47

Chemistry Mcqs Set 47

1. In which of the following, electrical energy is converted to mechanical energy ____
(a) Wind mill 
(b) Thermal power station
(c) Electric bulb                   
(d) Electric fan           
 
2. Solar energy is used in ______.
(a) solar cooker            
(b) heater                     
(c) street light                
(d) all the above
 
3. During photosynthesis which energy change takes place_____
(a) Electrical energy to sound energy                    
(b) Light energy to chemical energy
(c) Electrical energy to heat energy                       
(d) Chemical energy to heat energy
 
5. Which of the following requires wind energy?
(a) Bicycle               
(b) Automobile                 
(c) Parachute                
(d) Photosynthesis
 
6. Plants prepare their food from _____ energy
(a) water                 
(b) solar                  
(c) fertilizer                     
(d) soil
 
7. Which one of the following is the main source of all energies_____
(a) sky                  
(b) water                    
(c) Sea tides                          
(d) Sun
 
8. In which of the following, heat energy obtained by burning coal is converted into electrical energy______
(a) Wind mill                     
(b) Solar cooker     
(c) Hydraulic power station   
(d) Thermal power station
 
9. The valency of Fe in Fecl3 is _____
a. 1                                             
b. 3
 
10. The valency of Neon is _______
a. zero                                             
b. eight