Question

give reason
1) oil and water do not stick on non stick cookware.
2) immersion rods for boiling liquids are made up of metallic substances.

Answer 1

1) This is beacause non stick cookware is covered with a layer of PTFE, commonly reffered to as Teflon, which is known for offering almost no friction to anything that comes in contact with it.

2) Immersion rods are made up of metallic substance because metals are good conductors of heat and electricity.