Chemistry (9-1) - 0971 CIE

Carboxylic Acids

Muhtasari

The sharp taste of vinegar comes from ethanoic acid, the best known member of the carboxylic acids. This family is marked by the -COOH functional group, and although these are weak acids, they show all the familiar acid reactions you already know.

In this lesson you will learn that carboxylic acids form a homologous series with the -COOH group, how ethanoic acid reacts with metals, bases and carbonates as a typical acid, and how it reacts with an alcohol to form a sweet-smelling ester.

Malengo

  1. Describe the reaction of ethanoic acid with: (a) metals (b) bases (c) carbonates including names and formulae of the salts produced.
  2. [Supplement] Describe the formation of ethanoic acid by the oxidation of ethanol: (a) w ith acidified aqueous potassium manganate(VII) (b) b y bacterial oxidation during vinegar production.
  3. [Supplement] Describe the reaction of a carboxylic acid with an alcohol using an acid catalyst to form an ester.

Maelezo ya Somo

Carboxylic acids connect organic chemistry back to the acid reactions you met earlier. Ethanoic acid is found in vinegar and made industrially from ethanol, and the esters it forms give fruits and perfumes their pleasant smells. The family ties several parts of the syllabus together.

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.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Tathmini ya Somo

Hongera kwa kukamilisha somo la Carboxylic Acids. 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.

  1. The functional group of the carboxylic acids is: A. -OH B. -COOH C. C=C D. -Cl Answer: B
  2. Ethanoic acid is classed as a: A. Strong acid B. Weak acid C. Base D. Neutral substance Answer: B
  3. Ethanoic acid reacts with magnesium to give hydrogen and: A. An ester B. A magnesium ethanoate salt C. Carbon dioxide D. An alcohol Answer: B
  4. Ethanoic acid reacts with sodium carbonate to give a salt, water and: A. Hydrogen B. Oxygen C. Carbon dioxide D. An ester Answer: C
  5. A carboxylic acid reacts with an alcohol to form water and a(n): A. Salt B. Ester C. Alkane D. Carbonate Answer: B

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.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

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.

Maelezo kamili ya masomo yenye michoro
Msaidizi wa kujifunza wa AI
Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

Fanya Mazoezi ya Maswali ya Majaribio

Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Carboxylic Acids? 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.

Green Bridge CBT Mobile App
Msaidizi wa Gumzo wa Kujifunza wa AI Uliobinafsishwa
Maelfu ya Maswali ya Zamani ya JAMB, WAEC & NECO
Zaidi ya Madaftari ya Masomo 1200
Msaada Nje ya Mtandao - Jifunze Wakati Wowote, Popote Pale
Ratiba ya Daraja la Kijani
Muhtasari wa Fasihi na Maswali Yanayoweza Kutokea
Fuata Utendaji na Maendeleo Yako
Maelezo ya Kina kwa Kujifunza kwa Kina