After a positive test, the bromine water becomes what color?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the IGCSE Organic Chemistry Test. Engage with flashcards and multiple-choice questions, complete with hints and detailed explanations. Prepare effectively to excel in your exam!

Multiple Choice

After a positive test, the bromine water becomes what color?

Explanation:
Bromine water is orange-brown because it contains Br2. A positive test for unsaturation happens when a compound with a carbon–carbon double bond reacts with Br2, adding across the double bond to form a dibromo compound. This reaction uses up the Br2, so the colored bromine is removed and the solution turns colorless. If there’s no double bond, as with alkanes, the bromine water stays orange-brown.

Bromine water is orange-brown because it contains Br2. A positive test for unsaturation happens when a compound with a carbon–carbon double bond reacts with Br2, adding across the double bond to form a dibromo compound. This reaction uses up the Br2, so the colored bromine is removed and the solution turns colorless. If there’s no double bond, as with alkanes, the bromine water stays orange-brown.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy