Which one does not belong

Exercise and reference answers

Questions

1. Items

   1. Maxwell
   2. Boltzmann
   3. Mendeleev

   Odd item

   Mendeleev

2. Items

   1. Radioactivity
   2. Viscosity
   3. Diffusion

   Odd item

   Radioactivity

3. Items

   1. Pressure
   2. Colour
   3. Temperature

   Odd item

   Colour

4. Items

   1. Neon
   2. Argon
   3. Oxygen

   Odd item

   Oxygen

Instructions

Tap the item that does not fit with the others.

Explanation