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A-Level Chemistry Questions
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The OCR A Chemistry specification splits the content into 6 modules:

(1) Development of practical skills in chemistry (2) foundations in chemistry (3) Periodic table and energy (4) Core organic chemistry (5) Physical chemistry and transition metals (6) Organic chemistry and analysis.
 

A-Level Chemistry Questions
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25 Questions

1. Explain why the Maxwell Boltzmann distribution changes when the temperature of a gas is increased?

2. If gases in a mixture are present in equal quantities, their partial pressures ________

3. The general formula of alcohols is ________

4. What is metallic bonding?

5. Why does the rate of reaction increase in an autocatalyis reaction?

6. These electrodes in ________ are made by coating a porous ceramic material with a thin layer of platinum.

7. Basic buffers contain a ________.

8. The process of flue gas desulfurisation:

9. Why is the second ionisation energy always larger than the first?

10. CO32-

11. What product is produced through the oxidation of primary alcohols under reflux?

12. Explain why the melting point of sodium chloride is high. (2)

13. What are the two reactions that are taken by a homogeneous catalyst?

14. Complex ions that contain ________ co-ordinate bonds have an octahedral shape.

15. How is hydrogen sulfide a distinctive gas?

16. Tollen's reagent will oxidise: ________

17. Is fermentation an exothermic or endothermic reaction?

18. Name an advantage of batch processes.

19. Give one external use of mass spectrometers.

20. 3+ metal aqua ions react with ________ to form metal hydroxide, carbon dioxide and water.

21. '''A constant that links the concentration of reactants to the rate of reaction'''

22. What is a buffer?

23. Write a reaction between a weak acid, HA, and a base B

24. What are the conditions of a Friedel-Crafts acylation reaction?

25. Which molecule has the higher melting/boiling point: - branched molecule -long, straight molecule

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