Test for chlorine gas which observation is expected?

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 $24.99Unlock all

Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

Test for chlorine gas which observation is expected?

Explanation:
Chlorine gas acts as a bleaching agent. When it meets damp litmus paper, it reacts with the moisture to form hypochlorous acid, an oxidizing bleach, which removes the color from litmus. So damp litmus paper is bleached (loses its color) in the presence of chlorine. The other observations point to different gases: turning limewater cloudy comes from carbon dioxide; damp red litmus turning blue indicates a basic gas like ammonia; and a glow-in-the-splint test would show oxygen present.

Chlorine gas acts as a bleaching agent. When it meets damp litmus paper, it reacts with the moisture to form hypochlorous acid, an oxidizing bleach, which removes the color from litmus. So damp litmus paper is bleached (loses its color) in the presence of chlorine. The other observations point to different gases: turning limewater cloudy comes from carbon dioxide; damp red litmus turning blue indicates a basic gas like ammonia; and a glow-in-the-splint test would show oxygen present.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy