Chemicals in Our daily life-1

 ಕನ್ನಡದಲ್ಲಿ ನೋಡಿ

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Activity No 1 Chlorine preparation
Laboratory preparation of chlorine
 * Estimated Time 40min
 * Materials/ Resources needed
 * 1) Cocn HCL
 * 2) KMNO4
 * 3) Round bottom flsk
 * 4) Thistle funnel
 * 5) Water
 * 6) H2SO4
 * 7) Delivery tube
 * 8) Stand
 * Prerequisites/Instructions, if any
 * Multimedia resources

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. 1.The liberated gas is collected using a gas jar by the upward
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displacement of air. Why?

2.Thistle funnel should be dipped in the acid, why?
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Activity No #

 * Estimated Time
 * Materials/ Resources needed
 * Prerequisites/Instructions, if any
 * Multimedia resources
 * Website interactives/ links/ simulations
 * Process (How to do the activity)
 * Developmental Questions (What discussion questions)
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Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.

Activity No #

 * Estimated Time
 * Materials/ Resources needed
 * Prerequisites/Instructions, if any
 * Multimedia resources
 * Website interactives/ links/ simulations
 * Process (How to do the activity)
 * Developmental Questions (What discussion questions)
 * Evaluation (Questions for assessment of the child)
 * Question Corner

Activity No #

 * Estimated Time
 * Materials/ Resources needed
 * Prerequisites/Instructions, if any
 * Multimedia resources
 * Website interactives/ links/ simulations
 * Process (How to do the activity)
 * Developmental Questions (What discussion questions)
 * Evaluation (Questions for assessment of the child)
 * Question Corner

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