1) Detergents contain a hydrophobic end which a) dissolves the detergent in water b) dissolves the grease c) makes clothes smell nice d) softens hard water 2) Washing powders contain bleach to a) lift dirt of clothes b) removes food stains c) removes coloured stains d) to reduce the energy needed for washing 3) Washing up liquid contains a) enzymes b) rinse agent c) optical brightener d) bleach 4) Detergents contain a hydrophilic end which a) dissolves the detergent in water b) dissolves the grease c) makes clothes smell nice d) softens hard water 5) Medicines are extracted from a) rocks b) enzymes c) a continous process d) plants 6) One thing that affects drugs cost is a) Research and testing b) Packaging 7) What 2 things are added together to make a detergent a) salt+ water b) acid + salt c) salt + alkali d) acid + alkali 8) What are molecules of grease held together by a) weak intermolecular forces b) covalent bonds c) ionic bonds d) hyrdrogen bonds

C4 revision quiz 2

by Anonymous
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?