There is no effect from the type of milk on the spoilage rate when you consider the traditional types - fat free, 2% fat, or full fat. Organic milk, which is produced without the use of antibiotics and disinfectants, usually contains more bacteria. As bacteria are responsible for milk spoilage, organic milk may have a shorter shelf life.
Skimmed, semi-skimmed and full fat all spoil at the same rate.
canned goods
for my hypothesis i think fat free milk will spoil first
I think seafood spoils quicker than milk, but milk spoils due to the bacteria that are naturally found in milk. Pasteurization eliminates pathogens and reduces the overall bacterial load. Since it is not sterilized, milk will eventually spoil even when refrigerated.
The pH of milk could change as it spoils, depending upon the microbes that are making it spoil.
When milk spoils, the pH will go down. This is due to microbial action that increases lactic acid in the milk. This is also why milk tastes sour when it has spoiled.
butter milk
The spoilage of milk is sometimes called souring.
Whole milk
Yes, but you will get sick.
Physical.
it spoils the milk because of the chemicial reaction
Milk spoils when microbes begin to grow in it decomposing the fats and sugar. The change is biochemical. The smell is associated with the waste products of decomposition.
it spoils the milk because of the chemicial reaction