1) A Hydrocrabon Contains... a) Carbon b) Oxygen c) Nitrogen d) Hydrogen e) Helium 2) An elastic band is different from the rubber used in a car tyre because... a) It's waterproof b) It's cheaper c) It's unvulcanised d) It's edible 3) The process of extracting materials from oil is called... a) Fraction Disturbance b) Fractional Distillation c) Frantic Dilution d) Frivelous Destruction 4) Short chains of hydrocarbons are more ..?.. than long chain hydrcarbons. a) Liquid b) Safe c) Flammable d) Useful 5) A monomer is a building block of a ...? a) Polypotthekettleon b) Polymer c) Polyfilla d) Polygrip

par Anonyme

Classement

Style visuel

Options

Changer de modèle

Restauration auto-sauvegardé :  ?