In the technically advanced modern world that uses real full fat electricity at 230V AC, the connection of the two appliances in adjacent sockets presents no problem. But even on a 115V supply, provided the outlets on the duplex socket are connected to different phases, it should be ok. Propane gas cylinders present no issues if they are used correctly and don't leak. Take care when changing the cylinder, this is a danger time as some gas will escape. Ventilate, no smoking or naked flame.
If all 3 are outside, no big problem. If the outlet has a 25 amp circuit breaker or less, it may trip when the refrigerator starts running when the micro wave is cooking, but that will be rare so just reset the circuit breaker and restart the microwave.
LPG should not be stored indoors.
http://www.propane101.com/propanecylinde...
Refrigerators and a microwaves draw significant
power, which usually prevents supplying both
from the same branch.
Resulting Voltage drop will damage both appliances
even if fuse or breaker doesn't open.
Sure, no problem. All the small, obvious problems with microwaves were solved decades ago.
Can I keep Microwave oven, Near LPG gas cylinder, Or over Refrigerator using same power socket (Multiplug).