Q:
      
      
         
            
Which of the following is the strongest acid?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: C) FCH2COOH         
         
Explanation: 
FCH2COOH is the strongest acid out of all.
Since the electron withdrawing inductive effect (-I effect) of the halogens decreases in the order of F>Cl> Br> I , therefore the acidic strength of the α- halo acids decreases in the same order.
 
FCH2COOH  >  ClCH2COOH   >   BrCH2COOH   >   ICH2COOH.
       
      
      
      
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