Alcohols
Akopọ
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.
Awọn Afojusun
- 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.
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Oriire fun ipari ẹkọ lori Alcohols. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- 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
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Awọn Iwe Itọsọna Ti a Gba Nimọran
Ẹ̀kọ́ síwájú láti àwọn orísun ṣíṣí
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Abala ìwé ẹ̀kọ́
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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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Alcohols? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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