Practical Organic Chemistry and PurificationmediumMCQ SINGLE⭐ Must-Do

During the organic layer test, chlorine water is added to the Lassaigne's extract in the presence ofPractical Organic Chemistry and Purification Chemistry Question

Question

During the organic layer test, chlorine water is added to the Lassaigne's extract in the presence of $CS_2$. If the organic layer turns violet, it confirms the presence of:

Answer: C

💡 Solution & Explanation

Chlorine water oxidizes $I^-$ to free $I_2$, which partitions into the dense organic layer ($CS_2$ or $CCl_4$) and imparts a characteristic violet color.

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