Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Cathode
   2. Anode
   3. Oxidation
   4. Zinc dissolves

   Odd item

   Cathode

2. Items

   1. Fluorine gas
   2. Lithium metal
   3. Highest potential
   4. Strong oxidiser

   Odd item

   Lithium metal

3. Items

   1. Salt bridge
   2. Metal wire
   3. Voltmeter
   4. Platinum black

   Odd item

   Platinum black

4. Items

   1. One bar gas
   2. One molar acid
   3. Platinum black
   4. Copper sulphate

   Odd item

   Copper sulphate

Instructions

Tap the item that does not belong with the rest.

Explanation