Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Coupling
   2. Gabriel
   3. Hoffmann
   4. Nitrile route

   Odd item

   Coupling

2. Items

   1. Sandmeyer
   2. Gatterman
   3. Iodide swap
   4. Acylation

   Odd item

   Acylation

3. Items

   1. Fishy smell
   2. Hydrogen bonds
   3. Water soluble
   4. Copper powder

   Odd item

   Copper powder

4. Items

   1. Aniline
   2. Ammonia
   3. Ethanamine
   4. Phenol

   Odd item

   Phenol

Instructions

Tap the item that does not belong with the rest.

Explanation