1) A substance that turns litmus red. It has a pH of less than 7. a) Acid b) Water c) Base d) Alkali 2) A substance that turns litmus blue. It has a pH of more than 7. a) Acid b) Water c) Base d) Alkali 3) A substance that is neither an acid nor an alkali. It has a pH of 7. a) Balanced b) Pure c) Neutral d) Base 4) A substance which can destroy metals, stonework and skin. a) Toxic b) Corrosive c) Abrasive d) Poisonous 5) A substance which causes skin and eyes to be sore or sting. a) Irritant b) Solvent c) Abrasive d) Radiation 6) A numerical scale from 1 to 14 showing how acidic or alkaline a substance is. a) Richter Scale b) Acid Scale c) Ionic Scale d) pH Scale 7) A reaction in which an acid reacts with an alkali or a base to produce a salt and water only. a) Neutralisation b) Fermentation c) Dehydration d) Salination 8) Any substance, soluble or insoluble, that neutralises an acid forming a salt and water only. a) Alkali b) Halogen c) Base d) Solvent 9) A dye that changes to different colours in acids and alkalis. a) Bleach b) Indicator c) Test Dye d) Chromatogram 10) A substance that has had water added to it to make it less concentrated. a) Suspension b) Absorbent c) Reduced d) Diluted

KS3 Acids & Alkalis

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?