Back to the full dot-point answer
SingaporeChemistryQuick questions
Organic Chemistry
Quick questions on Alcohols and carboxylic acids explained: O-Level Chemistry
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is combustion of ethanol?Show answer
Ethanol burns completely in air to give carbon dioxide and water, releasing energy, which is why it is used as a fuel:
What is oxidation of ethanol to ethanoic acid?Show answer
Ethanol can be oxidised to ethanoic acid (). This happens slowly when ethanol is left open to the air (with bacteria), turning wine sour into vinegar, or quickly using an oxidising agent such as acidified potassium manganate(VII) (the purple colour fades as it is reduced). Ethanoic acid is the acid in vinegar.
What is ethanoic acid as a weak acid?Show answer
Ethanoic acid is a carboxylic acid containing the group. It is a weak acid (only partially ionised), but it still shows the typical acid reactions:
What is q1?Show answer
State the conditions needed for the fermentation of glucose to ethanol. [1 mark]
What is q2?Show answer
Name the product when ethanol is oxidised, and one way this oxidation can be carried out. [2 marks]
What is q3?Show answer
Name the type of compound formed when ethanoic acid reacts with ethanol, and the other product. [2 marks]
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.