An organic compound ‘P’ is a constituent of wine. ‘P’ on reacting with acidified K 2 Cr 2 O 7 forms another compound ‘Q’. When a piece of sodium is added to ‘Q’ a gas ‘R’ evolves which burns with a pop sound. Identify P, Q and R and write the chemical equations of the reactions involved.
Answer
- P i.e. ethanol is a constituent of wine.
- On reaction with K 2 Cr 2 O 7 which is an oxidizing agent, it forms ethanoic acid.
- Ethanoic acid reacts with NaOH which is a base to give sodium salt of ethanoic acid and water.
Thus,
- P: Ethanol
- Q: Ethanoic acid
- R : Sodium salt of ethanoic acid