In a laboratory quality control test, an unknown alcohol sample produces a yellow precipitate with iodine and sodium hydroxide. Which alcohol is it?
Q1. In a laboratory quality control test, an unknown alcohol sample produces a yellow precipitate with iodine and sodium hydroxide. Which alcohol is it?
Answer: Ethanol
Explanation: Ethanol gives a positive iodoform test due to its structure, while methanol lacks the required methyl group attached to carbinol.