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WELCOME

KARMAEER BHAURAO PATIL VIDYALYA KINHAI TAL. KOREGAON.A Presentation By Mrs. Shobha DayanaKambale. (Bsc. BEd.)Carbon and carbon compoundsLaboratory preparation of Carbon dioxide Aim- To prepare and study the properties of carbon dioxide.Apparatus- Flat bottom flask, two holed rubber cork , thistle funnel, gas delivery tube, gas jar with lid ,stand candles, match box, test tubes, deflagrating spoon.Chemicals- Pieces of marble / shahabad stone , dil.Hydrochloric acid, blue and red litmus paper, freshly prepared lime water,magnesium ribbon.

Diagram-

Balanced chemical equation- CaCO3 + 2 HCl CaCl2 + H2O + CO2 Calcium Hydrochloric Calcium water Carbon Carbonate acid chloride dioxide

7Physical propertiesCO2 is a tasteless, odourless, colourless gas. It is heavier than air. It dissolves sparingly in water.

Chemical properties1) Combustion test- CO2 is neither combustible nor supporter ` of combustion.

2) Reaction with lime water- Ca(OH)2 + CO2 CaCO3 + H2O Calcium Carbon Calcium Water Hydroxide dioxide carbonate

Acidic nature- CO2 + H2O H2CO3 Carbon water Carbonic acid Dioxide 4) Reaction with alkali- 2NaOH + CO2 Na2CO3 + H2O Sodium carbon Sodium Water Hydroxide dioxide carbonate

Na2CO3 + CO2 + H2O 2NaHCO3 Sodium Carbon Water SodiumCarbonate dioxide bicarbonate

CHEMICAL PROPERTIES Exercise Fill in the blanks. CO2 is than air.

CO2 is collected by of air.

CO2 turns lime water..

Reaction of carbon dioxide with water forms..Thank You