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How many structural isomers with the molecular formula C3H6O react with Tollens' reagent? - AQA - A-Level Chemistry - Question 28 - 2018 - Paper 3
Question 28
How many structural isomers with the molecular formula C3H6O react with Tollens' reagent?
Worked Solution & Example Answer:How many structural isomers with the molecular formula C3H6O react with Tollens' reagent? - AQA - A-Level Chemistry - Question 28 - 2018 - Paper 3
Step 1
Determine the structural isomers for C3H6O
Answer
For the molecular formula C3H6O, we can identify the following structural isomers:
- Propanal (an aldehyde)
- Cyclopropanol (a cyclic alcohol)
- Acetone (a ketone)
- 1-Propanol (a primary alcohol)
- 2-Propanol (a secondary alcohol)
Out of these, the isomers that can react with Tollens' reagent are propanal and some alcohols; however, typically only aldehydes react positively.
In this case, we must check which structures count: typically two isomers (propanal and cyclopropanol) are recognized as reacting, thus confirming.
So, the answer is:
4 structural isomers that react with Tollens' reagent.