Question

When you spill coffee or tea on your cotton clothes you are advised to wash the spot off with water immediately as "leaving that coffee on your clothes makes it impossible to remove the stain later."

The stain that is not removable is formed due to a _______________________.

1. physical change - since it becomes difficult to "separate" coffee from the clothes
2. chemical change - some constituent of coffee chemically bonds with the fibres in
the cloth
3. physical change - as it changes the density of cloth and makes it appear different
4. chemical change - coffee simply changes its colour though it does not react with
cloth

Answer 1

Answer:

the answer is the second point

Answer 2

Answer:

Oh Men I can Just Answer One question plz make it short