Chemistry Mcqs Set 48

Chemistry Mcqs Set 48

1. During combustion light is evolved along with
a. Heat              
b. Flame                     
c. Air                        
d. None of these
 
2. Substances that catch fire easily are
a. Inflammable                      
b. Non-combustible                       
c. Heavy                     
d. Light
 
3. LPG is a mixture of
a. Methane and Propane                          
b. Propane and Butane
c. Butane and Methane                           
d. None of these
 
4. Rusting of iron is an example of ______ combustion.
a. Slow                   
b. Rapid                 
c. Spantaneous                    
d. Incomplete
 
5. ________ is a good supporter of combustion.
a. Oxygen                   
b. Carbon dioxide               
c.Nitrogen                   
d. Hydrogen
 
6. Petrol is a
a. solid fuel                                                
b. Highly inflammable
c. Non-combustible Substance                   
d. Less inflammable substance
 
7. A pure substance is free from _____
a. adulteration                  
b. dut particles        
 
8. _________ is a pure substance.
a. Sugar                                        
b. Milk
 
9. A _________ is made up of the same kind of atoms or different kinds of atoms.
a. molecule                                  
b. element
 
10. ________ is an element.
a. Oxygen                                   
b. Silver bromide