Alcohols
Bayani Gaba-gaba
Ethanol, the alcohol in fuels and solvents, is one of the most useful organic compounds of all. It belongs to a family marked by a single reactive group, the -OH group, and it can be made in two very different ways: by fermentation of sugar or by adding steam to ethene.
In this lesson you will learn that alcohols are a homologous series with the -OH functional group, how ethanol is produced by fermentation and by the hydration of ethene, and the key reactions of ethanol: combustion and oxidation to a carboxylic acid.
Manufura
- Describe the manufacture of ethanol by: (a) fermentation of aqueous glucose at 25- 35 °C in the presence of yeast and in the absence of oxygen (b) catalytic addition of steam to ethene at 300 °C and 6000 kPa / 60 atm in the presence of an acid catalyst.
- Describe the combustion of ethanol.
- State the uses of ethanol as: (a) a solvent (b) a fuel.
- [Supplement] Describe the advantages and disadvantages of the manufacture of ethanol by: (a) fermentation (b) catalytic addition of steam to ethene.
Darasin Sauti
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Taswirar tunani
An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.
Bude taswirar tunani a cikin manhaja
Katunan tunawa
Gwaji mai sauri kan abin da ake jarraba a wannan batu.
Yi atisayen wadannan katuna a cikin manhaja
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Alcohols. Yanzu da kuka bincika mahimman ra'ayoyi da ra'ayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- The functional group of the alcohols is: A. C=C B. -OH C. -COOH D. -Cl Answer: B
- In fermentation, glucose is converted by yeast into ethanol and: A. Water B. Oxygen C. Carbon dioxide D. Hydrogen Answer: C
- Ethanol can be made from ethene by: A. Combustion B. Hydration C. Substitution D. Fermentation Answer: B
- Complete combustion of ethanol produces carbon dioxide and: A. Carbon monoxide B. Hydrogen C. Water D. Soot Answer: C
- When ethanol is oxidised, it forms: A. Ethene B. Ethane C. Ethanoic acid D. Glucose Answer: C
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
Alcohols and Ethers
Describe the structure and properties of alcohols
"Chemistry: Alcohols and Ethers" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/20-2-alcohols-and-ethers. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Alcohols? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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