Which one does not belong

Exercise and reference answers

Questions

1. Items

   1. Combination
   2. Distillation
   3. Decomposition

   Odd item

   Distillation

2. Items

   1. Metal swap
   2. Non-metal swap
   3. Melting point

   Odd item

   Melting point

3. Items

   1. Adds hydrogen
   2. Adds oxygen
   3. Removes hydrogen

   Odd item

   Adds hydrogen

4. Items

   1. Zinc
   2. Chlorine
   3. Copper

   Odd item

   Chlorine

Instructions

Tap the item that does not fit with the others.

Explanation