1. Additional Science Chemistry This is a product of Mr Essex a member of the science department of Dartford Technology College

2. Question 1 What Colour is Chlorine gas? Blue Purple Green Red

3. Question 2 What is the chemical symbol for Bromine? B Bo Be Br

4. Question 3 What is the atomic mass of Chlorine? 34.5 35.0 35.5 36.0

5. Question 4 What do we call group 7 of the periodic table? Alkali metals Rare Earth Metals Halogens Transitional Metals

6. Question 5 What type of bond shares electrons? Premium Bond Basildon Bond Covalent Bond Ionic Bond

7. Question 6 The rate of a chemical reaction doubles with a rise in temperature of ? 50 o C50 o C 30 o C30 o C 10 o C10 o C 1 o C1 o C

8. Question 7 What do we call a reaction that gives out heat to its surroundings? Exothermic Endothermic Endoskeleton Exoskeleton

9. Question 8 What do we call a biological catalyst? Hormone Lipid Blood Enzyme

10. Question 9 Organic crops are grown without the use of ? Chemical Fertilisers Manure Compost Fishmeal

11. Question 10 Who invented the process for the manufacture of ammonia? Nobel Haber Fleming Dalton

12. Question 11 What do we call the elements in group one? Transitional Metals Alkali Metals Rare Earth Metals Nobel Gases

13. Question 12 Which particle in the atom has a negative charge? Proton Neutron Electron Nucleus

14. Question 13 What do we call the positive electrode used in electrolysis? Anoxia Anorak Anonym Anode

15. Question 14 What does ductile mean ? Can be hammered into shape Can be drawn into a wire Can be rolled into a ball Can be flattened into a shield

16. Question 15 Steel is not a pure element it is an ? Alley Alloy Allele Allay

17. Question 16 Sticky or thick liquids are said to be ? Thin Pretty Expensive Viscous

18. Question 17 Which industrial process is used to separate out the constituent parts of crude oil? Chromatography Electrophoresis Fractional distillation Electrolysis

19. Question 18 What do we call a set of hydrocarbons that only have single bonds ? Alkynes Alkenes Alkanes Alkaloids

20. Question 19 Which of the following can be a condensation polymerisation reaction by product ? Air Land Water Glucose

21. Question 20 Hydrogenate means to react a substance with ? Hydrogen Helium Oxygen Nitrogen

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