Answer: Oven cleaner is highly basic in nature. It is used to clean the oven which is being used before to cook something.
The oven cleaner is usually basic in nature as it feels slippery to touch. It is dangerous too and should not be touched with bare hands.
The likely pH of oven cleaner can be more than 10 and less than 14. It is usually used to clean the stains and oily greasy stuff inside the oven.