How can carbon dioxide gas be identified?
Answer and explanation
Correct answer: D. turns limewater milky
Carbon dioxide gas turns limewater milky.
Answer: turns limewater milky.
Why not the others: relights a glowing splint: that is the test for oxygen. bleaches damp litmus paper: that is the test for chlorine. turns damp red litmus paper blue: that is the test for ammonia.
Answer: turns limewater milky.
Why not the others: relights a glowing splint: that is the test for oxygen. bleaches damp litmus paper: that is the test for chlorine. turns damp red litmus paper blue: that is the test for ammonia.
Practise more Gases and tests.
Free questions with an explanation for every one, and full timed Junior Cycle (Ireland) mock tests.