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                                                            S1: Metals are today being replaced by polymers in many applications. P : Above all, they are cheaper and easier to process making them a viable alternative to metals. Q : Polymers are essentially a long chains of hydrocarbon molecules. R : Today polymers as strong as metals have been developed. S : These have replaced the traditional chromium-plated metallic bumpers in cars. S6: Many Indian Institutes of science and Technology run special programmes on polymer science. The Proper sequence should be:
                                    
                
                
            
            
            
            
                                                
                        
            
            
                        
            
                
                
                
            
                        
                        
            
            
                        
            
                
                
                
            
                        
                        
            
            
                        
            
                
                
                
            
                        
                        
            
            
                        
            
                
                
                
            
                        
                        
            
            
                        
            
                
                
                
            
                        
                     
        
     
            
            
            
         
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