Name one acid preservative used to preserve the food.
What do you mean by hypnotic drug?
What is the parent compound of sulpha drugs?
Name one chemical which preserves colourless fruit juices.
What does sodium benzoate actually do when it is mixed with fruit juices or squash?
Give two uses of dettol.
What do you mean by anti depressants?
What do you mean by food preservation?
Why does 70% sugar syrup act as a preservative?
