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From Karnataka Open Educational Resources
Chemicals in Our daily life-1 (view source)
Revision as of 15:36, 25 January 2018
, 15:36, 25 January 2018→Activity No 1 Chlorine preparation
* '''Prerequisites/Instructions, if any'''
* '''Prerequisites/Instructions, if any'''
* '''Multimedia resources'''<br>
* '''Multimedia resources'''<br>
{{#widget:YouTube|id=vJZF_exS7pA}}
Laboratory preparation of chlorine <br>
{{#widget:YouTube|id=C2kf7OBbFsM}}
* '''Website interactives/ links/ simulations'''
* '''Website interactives/ links/ simulations'''
* '''Process (How to do the activity)'''<br>
* '''Process (How to do the activity)'''
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.
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)'''
1.The liberated gas is collected using a gas jar by the upward
displacement of air. Why?
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'''
