Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Acetone
   2. Vanillin
   3. Cinnamaldehyde
   4. Salicylaldehyde

   Odd item

   Acetone

2. Items

   1. Ester
   2. Anhydride
   3. Acyl halide
   4. Carbonyl

   Odd item

   Carbonyl

3. Items

   1. 120 degrees
   2. One plane
   3. Trigonal
   4. Two planes

   Odd item

   Two planes

4. Items

   1. Water mixing
   2. Hydrogen bonds
   3. Long alkyl chain
   4. Lower members

   Odd item

   Long alkyl chain

Instructions

Tap the item that does not belong with the rest.

Explanation