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Jones Reagent, H2CrO4 Oxidation of Alcohols Reaction Mechanism Chromic Acid|breath analyzer applic

Assalam o Alaikum in this lecture i am going to discuss the reaction mechanism of the Jones Reagent which is used to oxidized primary alcohols into carboxylic acids and secondary alcohols into ketones. The jones reagent is composed of Chromium Trioxide CrO3, H2O, and H2SO4 (Sulfuric acid) which generates chromic acid H2CrO4. Oxidation of primary alcohols first generates an aldehyde which converts to the geminal / gem diol hydrate form which is then oxidized into a carboxylic acid. Tertiary alcohols are resistant to oxidation.This lecture is delivered in Urdu ,Hindi and English. 1° Alcohols are oxidized to carboxylic acids (RCOOH) under harsher reaction conditions: Na2Cr2O7, K2Cr2O7, or CrO3 in the presence of H2O and H2SO4. The mechanism for the oxidation of 1° alcohols to aldehydes parallels the oxidation of 2° alcohols to ketones detailed is discussed in this lecture. Oxidation of a 1o alcohol to a carboxylic acid requires three operations: oxidation first to the aldehyde, reaction with water, and then further oxidation to the carboxylic acid, Cr6+ oxidations are characterized by a color change, as the red-orange Cr6+ reagent is reduced to green Cr3+. The first devices used to measure blood alcohol content in individuals suspected of “driving under the influence” made use of this color change. Oxidation of CH3CH2OH, the 1°alcohol in alcoholic beverages, with orange K2Cr2O7 forms CH3COOH and green Cr3+.Blood alcohol level can be determined by having an individual blow into a tube containing K2Cr2O7, H2SO4, and an inert solid. The alcohol in the exhaled breath is oxidized by the Cr6+ reagent, which turns green in the tube .The higher the concentration of CH3CH2OH The oxidation of CH3CH2OH with K2Cr2O7 to form CH3COOH and Cr3+ was the first available method for the routine testing of alcohol concentration in exhaled air. Some consumer products for alcohol screening are still based on this technology in the breath, the more Cr6+ is reduced, and the farther the green Cr3+ color extends down the length of the sample tube. This value is then correlated with blood alcohol content to determine if an individual has surpassed the legal blood alcohol limit. contents covers:- 1)oxidation of primary alcohol to aldehyde by H2CrO4 OR Jones Reagent. 2)oxidation of SECONDARY alcohol to KETONE by H2CrO4 OR Jones Reagent. 3)oxidation of primary alcohol to Carboxylic acid by H2CrO4 OR Jones Reagent. 4) oxidation of SECONDARY alcohol to Carboxylic acid by H2CrO4 OR Jones Reagent. 5)oxidation of alcohol by Jones Reagent /H2CrO4 or K2Cr2O7 /Na2Cr2O7 along with H2SO4. 6) Oxidation of Alcohols - Na2Cr2O7, K2Cr2O7, H2SO4 Reaction Mechanism Most useful videos for you:- 1-Chemical properties of Acid|Chemical reactions|10th class chemistry chapter 10|lecture in urdu,hindi https://youtu.be/cQkZE2IbQgo 2)Uses of pH, Chemistry Lecture | Authentic Education Channel|10th class chapter 10-Acid,Base & salts https://youtu.be/dM4UoP3Sw2Q 3)preservatives in food-How to preserve food at Home-A brief introduction|10th class chemistry lecture https://youtu.be/gKr1WWhK8PE 4)indicators/Methyl orange-litmus-Phenolphthalein/chemistry lecture in Urdu hindi and English|10TH https://youtu.be/s30Dqo1EnsY 5)uses of salts|10th class chemistry chapter 10|lecture in urdu hindi and english|Authentic education https://youtu.be/tXEUnvr7To0 6)Area of work for Analytical Chemists l10th class chemistry-chapter 10|lecture in Urdu,Hindi& English https://youtu.be/4N8hQhhX9ec 7) Uses of Bases-10th class chemistry|Lecture in Urdu,Hindi English|chapter 10|Authentic Education chan https://youtu.be/mt1wwsi5-j0 11)stomach acidity,hyperacidity,causes ,symptoms,prevention|10th class chemistry lecture in Urdu|online https://youtu.be/mYLL6PuUNQk 12)Removal of permanent hardness By using washing soda 10th class https://youtu.be/_6iukG1mZ1U 13)Removal of Temporary Water hardness by clarks method https://youtu.be/gO1fHgWhitY 14)Nucleophilic Aromatic substitution reactions https://www.youtube.com/playlist?list... 15)Electrophilic Aromatic substitution Reactions https://www.youtube.com/playlist?list... 16)10th class chemistry chapter 10 https://www.youtube.com/playlist?list... 17) 10th class chemistry chapter#15(water) https://www.youtube.com/playlist?list... 18)10th class chemistry chapter#9 chemical equilibrium https://www.youtube.com/playlist?list... #OxidationofAlcohols #H2CrO4ReactionMechanism #JonesReagent #ChromicAcid #breathanalyzer #Oxidationofprimaryalcohols #secondaryalcohol #oxidation #AuthenticEducationChannel
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