Edexcel A-Level Chemistry AS 4.3 Suggest Ways in Which Risks Can Be Reduced and Reactions Carried Out Safely for Example I Working on a Smaller Scale Ii Questions

Use marked Edexcel IAL Chemistry questions to choose ventilation, protective equipment, heating, cooling and handling controls that reduce practical chemical risk.

Exam points

Choose ventilation or fume-cupboard controls when toxic or corrosive vapours or gases may be produced.
Select hazard-specific precautions such as gloves, no naked flames and electric heating.
Use smaller scale, cooling, controlled addition and suitable waste or storage procedures to reduce practical risk.

[Maximum number: 2]

This question is about ethene, $\mathrm{C}_{2} \mathrm{H}_{4}$ .

Ethene and chlorine react to form 1,2-dichloroethane.

One hazard symbol for 1,2-dichloroethane is shown.

Figure for Question Edexcel A-Level Chemistry AS 4.3 Suggest Ways in Which Risks Can Be Reduced and Reactions Carried Out Safely for Example I Working on a Smaller Scale Ii Questions question 1 — Edexcel A-Level Chemistry AS

By identifying this hazard, give one way of minimising the risk when working with 1,2-dichloroethane in a laboratory.

Assume the use of safety goggles and a laboratory coat.

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Edexcel A-Level Chemistry AS 4.3 Suggest Ways in Which Risks Can Be Reduced and Reactions Carried Out Safely for Example I Working on a Smaller Scale Ii Questions question 1