Carbon dioxide By Tasneem Hussain
Preparation of Co2 1. CaCO3 -> CaO CO2 2. Hydrocarbon + O2 --> nCO2 + nH2O Properties 1. CO2 + 2NaOH -> Na2CO3 H20 2. CO 2NH --> H2O (H2N) CO (urea) 3. 6CO2 6H20>CGH1206 602 ( photosynthesis) . With water forms H2CO H2COdaq) + H2O (l) --> HC03. (aq) + H,OY (aq) -(aq) + H2O (l) --> CO32-(aq) + H30+ (aq)
Gaseous CO2 is used to carbonate soft drinks. .Dry ice - Solid carbon dioxide. Fire extinguisher - Na2CO3 H2SO4 --> Na2SO4 H2O + CO 2NaHCO3 + H2SO4 -> Na,S04 2H20 2CO2 .Action of water - Sn + 2H,O SnO, + 2H2 2 Halides - form halides of formula MX2 and MX4 Stability of dihalides increases down the group. GeX4 is more stable than GeX2 but PbX2 is more stable than PbX, MX4 halides undergo sp3 hybridisation and the molecul is tetrahedral in shape
Silicones - habe good thermal oxidative stability. Silicates - metal derivative of silicic acid, H4SiO4 or Si(OH) Tetrahedral unit - Si044 Si is sp3 hybridised and is surrounded by 4 oxygen atoms.
Persuing MBBS from PCMS AND RC Bhopal Find Quiz based on previous years papers of NEET, AIIMS and AIPMT on my feed.