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Chemicals in Our daily life-1 (view source)

Revision as of 15:36, 25 January 2018

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→‎Activity No 1 Chlorine preparation
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Science:_History The Story of Science]
 
[http://www.karnatakaeducation.org.in/KOER/en/index.php/Science:_History The Story of Science]
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|style=" width:10%; border:none; border-radius:5px;box-shadow: 5px 5px 5px #888888; background:#f9f9ff; vertical-align:middle; text-align:center; "|[http://www.karnatakaeducation.org.in/KOER/en/index.php/Science:_Philosophy Philosophy of Science]
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[http://www.karnatakaeducation.org.in/KOER/en/index.php/Textbooks#Science_-_Textbooks Textbooks]
 
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* '''Prerequisites/Instructions, if any'''
 
* '''Prerequisites/Instructions, if any'''
 
* '''Multimedia resources'''<br>
 
* '''Multimedia resources'''<br>
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{{#ev:youtube| vJZF_exS7pA| 400}}
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Laboratory preparation of chlorine <br>
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{{#widget:YouTube|id=C2kf7OBbFsM}}
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https://www.youtube.com/watch?v=vJZF_exS7pA
   
* '''Website interactives/ links/ simulations'''
 
* '''Website interactives/ links/ simulations'''
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* '''Process (How to do the activity)'''<br>
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* '''Process (How to do the activity)'''
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When concentrated Hcl is added drop wise to the solid potassium permanganet, chlorine gas is liberated the liberated gas is collected in separate bottles by the upward displacement of air.
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When concentrated HCl is added drop wise to the solid potassium permanganate, chlorine gas is liberated the liberated gas is collected in separate bottles by the upward displacement of air.
 
* '''Developmental Questions (What discussion questions)'''
 
* '''Developmental Questions (What discussion questions)'''
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1.The liberated gas is collected using a gas jar by the upward
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displacement of air. Why?
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2.Thistle funnel should be dipped in the acid, why?
 
* '''Evaluation (Questions for assessment of the child)'''
 
* '''Evaluation (Questions for assessment of the child)'''
 
* '''Question Corner'''
 
* '''Question Corner'''
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