Edexcel IGCSE Chemistry 4.43C ester preparation practical
Practise ester-practical questions by explaining why a water bath is used instead of a Bunsen flame for flammable mixtures.
- Syllabus
- First assessment 2019
- Course
- Chemistry 4CH1
Exam points
- Explain why a water bath is used instead of a Bunsen flame for flammable ester mixtures.
4.43C Ester preparation practical question 1
[Maximum number: 2]
This question is about alcohols, carboxylic acids and esters.
Ethanol can be manufactured by the fermentation of a solution of glucose.
State two conditions needed for this reaction.
1
2
- 30 deg C
- anaerobic conditions / absence of air / oxygen
Accept:
- any temperature from 20 to 40 deg C inclusive
Ignore:
- yeast
- room temperature
Marking guidance:
- Answers can be in any order.
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