Alcohols
Muhtasari
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.
Malengo
- 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.
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Alcohols. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- 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
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Alcohols? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
