You will almost never make chocolate from the cacao bean - that is a commercial process.
What you should use when making something that contains depends on what kind of chocolate you are starting with. If you are going to bake a chocolate cookie, and oven is best, but some kinds can be make in a microwave. If you are melting chocolate to use in an icing, or as a topping on ice cream, doing so with water in a double boiler is probably best, but again, some forms of chocolate can be softened or liquefied in a microwave.
You can't. Only if it's a microwave-oven
The use of a microwave oven is to cook food or heat it quickly and efficiently using radiation.
I would use a microwave oven, it's a bit risky in a gas oven.
No - you will get food poisoning - do not heat quiche in a microwave oven - use a conventional oven & heat thoroughly
It is not recommended to use aluminium vessels in a microwave oven as it can cause sparks, arcing, and potentially damage the microwave. It is safer to use microwave-safe containers made of glass, ceramic, or microwave-safe plastics.
An oven as it does not use radiation to cook food.
Your microwave oven has "combination" features, most likely a combination of microwave and convection cooking. Consult the user manual for your specific oven to find out how to use these features.
In a gas oven, yes. But NOT in a microwave.
No, it is not safe to use aluminum dishes in a microwave oven. Aluminum can reflect the microwaves and cause sparks, potentially damaging the oven or even causing a fire. It is recommended to use microwave-safe materials such as glass or ceramic.
It depends, if you need it done fast use the microwave, if you need it slow cooked use the mini oven.
To optimize your cooking experience with a microwave convection oven, use the convection setting for even cooking and browning, preheat the oven for better results, use microwave-safe cookware, and follow recipes specifically designed for microwave convection ovens.
A cooker, an oven a microwave oven, a stove, a fire, a BBQ.