Yes, and extension cord can be used with a microwave. But it is critical to pick an extension cord with a sufficiently high rating on it. Hardware stores and large home stores have extension cords specifically for use as appliance extension cords. They are heavy, and they have only a single place on the end to plug something into. They cost a bit, but are worth it in peace of mind.
Only if it's a very heavy duty cord. You must bear in mind that most modern ovens are
rated at 1200 to 1500 watts. You need a compatible extension cord.
FriPilot
Yes. It should be a 'heavy-duty' extension cord, rated for 15A or 20A .
I wouldn't recommend it. At the same time, I'm not aware of a "factory-made" 240 V. plug-and-cord extention cord. This type of cord would have to be home-made. I could be wrong. As much of a pain as it may be, plugging in your stove directly to it's receptacle is best. An alternative is to use a microwave oven.
You can't. Only if it's a microwave-oven
A convection oven moves the air, a microwave does not.
compare microwave oven to conventional oven
Microwave oven
There are no famous microwave oven commercials. There were a lot of commercials for microwave ovens in the 1970s, but none stood out as famous. This question probably should have asked what a commercial microwave oven is. A commercial microwave oven is a microwave oven used by restaurants and cafeterias.
All microwave ovens have turn table. The heating in microwave takes place due to radiations and for getting uniform heating turn table is necessary. The fan helps in uniform distribution of heat which means the oven with fan for air convection will give better results.
If you mean the microwave and OVEN , then it does have microwave oven and also electrical heating oven capability.
A convection oven moves the air, a microwave does not.
Microwave oven
a microwave