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Isotopes have the same:
A) Atomic mass 
B) Atomic number
C) Neutrons                        
D) None of these


Which method is/are used to separate components of a mixture?
A) Filtration                         
B) Sublimation
C) Distillation                      
D) All of these


A chemical process that gives out heat is called………….
A) Combustion   
B) Synthesis
C) Polymerization              
D) Conduction


The attractive force among molecules is stronger in……….
A) Liquid                              
B) Solid
C) Gas                                  
D) All of these