61.

What is the parent compound of sulpha drugs?

What do you mean by hypnotic drug?

What do you mean by anti depressants?

Give two uses of dettol.

What do you mean by food preservation?

What does sodium benzoate actually do when it is mixed with fruit juices or squash?

Name one acid preservative used to preserve the food.

Why does 70% sugar syrup act as a preservative?

Name one chemical which preserves colourless fruit juices.