The answer is: Ammonium hydroxide would be found in the pantry because it is found in vinegar.
Ammonim hydroxide (NH₄OH) is base and vinegar is acid.
pH of ammonium hydroxide is greater than 7 and vinegar has pH less than 7.
Ammonium hydroxide is a smelling, colorless liquid.
It is used as cleaning product, disinfectants and stain treaters.
Household ammonia contains 5-10% ammonium hydroxide.