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▷ ▶ Test for Gases Flow chart SelectSmart.com free Science & Nature flowcharts and decision trees.
A SelectSmart.com Flowchart by MeiLing. See MeiLing's 4me blog page.
Viewed 911 times. Created October 2013.
This SelectSmart.com Science & Nature flowchart, a free online decision tool is a creation of MeiLing and for amusement purposes only. The implicit and explicit opinions expressed here are the author's. SelectSmart.com does not necessarily agree.
Science & NatureTest for Gases Flow chart
By MeiLing
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How to identify the gases present.

                 
Place a damp red litmus paper over the mouth of the test tube. Did the litmus paper turn blue?
NO
Place a blue litmus paper over the mouth of the test tube. Did the litmus paper turn red?
NO
Did the gas bleach the litmus paper?
YES
The gas is chlorine.
 

YES


YES



NO



The gas is ammonia.
Bubble the gas into limewater. Is there a white precipitate formed?
NO
The gas is sulfur dioxide.
Place a light splint over the mouth of the test tube. Did the gas extinguish the flame with a 'pop' sound?
NO
Place a glowing splint over the mouth of the test tube. Did the gas re-ignite the splint?



YES




YES


YES
 
The gas is carbon dioxide.
 
The gas is hydrogen.
The gas is oxygen.