5A.- T1-3p
An antiseptic is a chemical that kills pathogens but it can be used on living tissue, a disinfectant is also a chemical that kills pathogens, but it is more corrosive and is used for non-living surfaces. A disinfectant cannot be used on living tissue, it will cause too much damage.
Disinfectant - bleach / boiling water
Antiseptic - hand gel / antibacterial soap / iodine
1pt for the difference explained
1pt each for an example given