You will destroy the battery and be buying a new one.
A 12 volt battery charger is designed to charge 12 volt batteries.The answer to the Related Question explains how any battery charger works.
No, a 12 volt charger will overcharge a 8 volt battery and destroy it.
Yes, a 12 volt battery will be damaged if charged with a 24 volt charger.
If you are asking the question, can you charge a 6 volt battery with a 12 volt charger, the answer is no.
Charge it with a 12 volt battery charger.
No chargers usually produce about 1.5 volts above the battery to be charged. By connecting a 12 volt charger to an eight volt battery it will boil the electrolyte in the battery.
No it will not work
no it can't
It is not recommended to charge a 6 volt battery with a 12 volt battery charger as it can damage the battery. The higher voltage can overcharge the battery and cause it to overheat. It is important to use the correct charger with the matching voltage to prevent damage to the battery.
No you cannot.
No
NoNo