Chemistry-
General
Easy

Question

The appropriate reagent for the transformation

  1. Z n left parenthesis H g right parenthesis comma H C l    
  2. N H subscript 2 end subscript N H subscript 2 end subscript O H to the power of minus end exponent    
  3. H subscript 2 end subscript divided by N i    
  4. N a B H subscript 4 end subscript    

The correct answer is: N H subscript 2 end subscript N H subscript 2 end subscript O H to the power of minus end exponent


    Both Z n left parenthesis H g right parenthesis comma H C l and N H subscript 2 end subscript N H subscript 2 end subscript comma O H to the power of minus end exponent can reduce negative C O C H subscript 3 end subscript group to negative C H subscript 2 end subscript minus C H subscript 3 end subscript group, but HCl will also bring about dehydration of alcohol to form alkene. Therefore, appropriate reagent for the conversion is N H subscript 2 end subscript N H subscript 2 end subscript comma O H to the power of minus end exponent.

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