Chemistry-
General
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Question

The correct order of reactivity towards nucleophilic addition reaction will be

  1. C H subscript 3 end subscript C H O greater than open parentheses C H subscript 3 end subscript close parentheses subscript 2 end subscript C O greater than C H subscript 3 end subscript C O C subscript 2 end subscript H subscript 5 end subscript    
  2. open parentheses C H subscript 3 end subscript close parentheses subscript 2 end subscript C O greater than C H subscript 3 end subscript C H O greater than C H subscript 3 end subscript C O C subscript 2 end subscript H subscript 5 end subscript    
  3. C H subscript 3 end subscript C O C subscript 2 end subscript H subscript 5 end subscript less than C H subscript 3 end subscript C H O greater than open parentheses C H subscript 3 end subscript close parentheses subscript 2 end subscript C O    
  4. C H subscript 3 end subscript C H O less than C H subscript 3 end subscript C O C subscript 2 end subscript H subscript 5 end subscript greater than open parentheses C H subscript 3 end subscript close parentheses subscript 2 end subscript C O    

The correct answer is: C H subscript 3 end subscript C H O greater than open parentheses C H subscript 3 end subscript close parentheses subscript 2 end subscript C O greater than C H subscript 3 end subscript C O C subscript 2 end subscript H subscript 5 end subscript


    Aldehydes are more reactive than ketones due to lesser number of +I group & again the reactivity of carbonyl group depends on the major nature of alkyl group attached to it.
    So correct order is
    C H subscript 3 end subscript C H O greater than open parentheses C H subscript 3 end subscript close parentheses subscript 2 end subscript C O greater than C H subscript 3 end subscript C O C subscript 2 end subscript H subscript 5 end subscript

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