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A chemist synthesises a substance using the following pathway - HSC - SSCE Chemistry - Question 13 - 2021 - Paper 1
Question 13
A chemist synthesises a substance using the following pathway. X hydration Y oxidation Z What are compounds X, Y and Z? X Y Z A. propa... show full transcript
Worked Solution & Example Answer:A chemist synthesises a substance using the following pathway - HSC - SSCE Chemistry - Question 13 - 2021 - Paper 1
Step 1
What are compounds X, Y and Z?
Answer
The synthesis pathway involves two steps: hydration and oxidation.
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Identifying Compound X: We start with compound X. In the given options, 'prop-1-ene' is the only appropriate choice for hydration. The hydration of an alkene generally yields an alcohol.
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Determining Compound Y: The hydration of prop-1-ene leads to the formation of propan-2-ol, as the reaction adds water across the double bond, resulting in the alcohol being formed at the more substituted carbon.
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Finding Compound Z: Next, the oxidation of propan-2-ol will yield propan-2-one (a ketone), as the alcohol will convert to a ketone under oxidation conditions.
Thus, based on the reactions:
- X = prop-1-ene
- Y = propan-2-ol
- Z = propan-2-one
The correct answer is option C.