difference between SO2 and CO2 test
difference between SO2 and CO2 test
Pankaj Kumar , 11 Years ago
Grade 12th pass
Inorganic Chemistry> difference between SO2 and CO2 test...
3 AnswersVasantha Kumari
|
SO2 is a colourless pungent gas which we can test as follows:
1. Acidic dichromate paper ---orange to green 2. KIO3+ starch solution reagent---SO2 turns filter paper moistened with KIO3 and starch soln blue. Lime water reagent SO2 forms white ppt of CaSO3 with lime water. |
CO2 being a colourless and odourless gas evolves with effervescence.
The test reagent for CO2 is lime water or baryta water. It forms white turbidity with limewater due to insoluble CaCO3 formation. Ca(OH)2+CO2 ®¯CaCO3+H2O |
|
SO2 test |
CO2 test |
Thanks & Regards,
Vasantha Sivaraj,
askIITians faculty
Vasantha Kumari
|
SO2 is a colourless pungent gas which we can test as follows:
1. Acidic dichromate paper ---orange to green 2. KIO3+ starch solution reagent---SO2 turns filter paper moistened with KIO3 and starch soln blue. Lime water reagent SO2 forms white ppt of CaSO3 with lime water. |
CO2 being a colourless and odourless gas evolves with effervescence.
The test reagent for CO2 is lime water or baryta water. It forms white turbidity with limewater due to insoluble CaCO3 formation. Ca(OH)2+CO2 ®¯CaCO3+H2O |
|
SO2 test |
CO2 test |
Thanks & Regards,
Vasantha Sivaraj,
askIITians facultyVasantha Kumari
SO2 is a colourless pungent gas which we can test as follows:
1. Acidic dichromate paper ---orange to green
2. KIO3+ starch solution reagent---SO2 turns filter paper moistened with KIO3 and starch soln blue.
Lime water reagent SO2 forms white ppt of CaSO3 with lime water.CO2 test:
CO2 being a colourless and odourless gas evolves with effervescence.
The test reagent for CO2 is lime water or baryta water.
It forms white turbidity with limewater due to insoluble CaCO3 formation.
Ca(OH)2+CO2 ®¯CaCO3+H2O
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