Question

what is the purpose of using dish soap when washing dishes?

○ to make the dishes look shiny

○ to make the water warmer

○ add fragrance to the dishes

● to remove grease and food particles

Explanation:

Dish soap contains surfactants. Surfactants have a hydrophilic (water - loving) head and a hydrophobic (water - hating, oil - loving) tail. The hydrophobic tail attaches to grease and food particles (which are non - polar, like oil), and the hydrophilic head interacts with water. This allows the grease and food particles to be lifted off the dishes and suspended in water, enabling them to be rinsed away. Making the dishes look shiny is a secondary effect due to the removal of dirt, not the main purpose. Dish soap does not make water warmer (that depends on the water source). Adding fragrance is a minor aspect compared to the cleaning function.

Answer:

to remove grease and food particles