yes
Wine. Grape juice will eventually turn to wine if allowed to ferment.
if you water your plant with grape juice it'll probably turn out to be dying or dry
Because the pH of the juice is changed.
Only if it is contaminated with something. If your grape juice has jelled, do not consume it; dispose of it. The only thing likely to happen to grape juice is for it to turn to wine or vinegar. Typically, unless this is your intent, it was not prepared properly before canning.
Yes, if it goes through the fermentation process.
at first it will turn purple then it will turn pink
No, boiling wine would not turn it back into grape juice. Wine is fermented and contains alcohol, flavors, and compounds developed during fermentation, which are not present in grape juice. Boiling wine would primarily evaporate the alcohol and alter its flavors, but it would not revert it to its original state as grape juice. Instead, you would end up with a concentrated liquid that lacks the characteristics of the original grape juice.
IODINE
The flower will turn into a china man and kill everyone...
Only by adding grape juice concentrate, sugar and yeast, and waiting a week.
orange juice
it will turn purple