KS3 Unit 7e Acids and Alkalis 1© NTScience.co.uk 2005

Acids and Alkalis

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Q1. What is a chemical with a pH less than 7

called?

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A1. Acid

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Q2. What is a chemical with a pH more than 7

called?

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A2. Alkali

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Q3. What is a chemical with a pH of 7 called?

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A3. Neutral

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Q4. What shows whether something is

alkali or acid?

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A4. An Indicator

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Q5. What is a liquid with a solid dissolved in it

called?

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A5. A Solution

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Q6. What do you call it when substances

chemically combine?

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A6. A reaction, react

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Q7. What is the scientific way of writing down a

chemical reaction called?

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A7. A Word Equation

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Q8. What is a dangerous substance that dissolves other materials called?

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A8. Corrosive

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Q9. What is a corrosive alkali is called?

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A9. Caustic

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Q10. Name a yellow citrus fruit

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A10. Lemon Grapefruit

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Q11. Name an acid found in grapefruits and

oranges

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A11. Citric Acid

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Q12. What acid do you put on your chips together with salt?

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A12. Vinegar(Acetic Acid,

Ethanoic Acid)

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Q13. What common chemical removes colour

or stains from cloth?

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A13. Bleach

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Q14. Name a red and blue indicator

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A14. Litmus

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Q15. What is the most common solvent called?

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A16. Water

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Q17. What acid is in a lead-acid car battery?

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A17. Sulphuric Acid

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