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Worksheetscarboxylic acid
Total questions: 13
Worksheet time: 13mins
What gas is produced when magnesium reacts with ethanoic acid?
hydrogen
carbon dioxide
oxygen
chlorine
What gas is produced when potassium carbonate reacts with ethanoic acid?
hydrogen
carbon dioxide
oxygen
chlorine
Complete the word equation for the reaction:
ethanoic acid + potassium carbonate → _________ ________+ carbon dioxide + water
(a)
Ethanoic acid is described as a weak acid. Explain what this means in terms of ionisation
fully ionised
partially ionised
deionised
Complete the following equation, which show what happens when ethanoic acid dissolves in water.
CH3COOH(aq)⋚ CH3COO– (aq) + _______
H
H-
H+
H2
What is the role of sulfuric acid in the reaction to make esters?
weak acid
hydrogen ion acceptor
catalyst
partially ionises
Esters have distinctive sweet smells, and are volatile liquids. What does volatile mean?
flows easily
catches fire easily
evaporates easily
colours easily
Carboxylic acids dissolve in water to form solutions with a typical pH of around (a) ? (type in a number)
What are some common uses of esters? (Select all that apply)
perfumes
flavourings
clothing
nappies
What is the general formula for carboxylic acid?
Apakah formula am asid karboksilik?
CnH2n+2
CnH2n+1OH
CnH2n+1COOH
CnH2n+1COOCmH2m+1
Which is the method used to prepare ethanoic acid in laboratory?
Kaedah yang manakah digunakan untuk menyediakan asid etanoik dalam makmal?
Fermentation
Penapaian
Catalytic hydration
Penghidratan bermangkin
Oxidation of alcohol
Pengoksidaan alkohol
Addition of water
Penambahan air
Diagram 5 shows the processes of making ethanoic acid. Which of the following processes are correctly matched?
Rajah 5 menunjukkan satu proses dalam pembuatan asid etanoik. Antara proses berikut, yang manakah dipadankan dengan betul?
X - Oxidation, Y - Cracking
X - Pengoksidaan, Y - Peretakan
X - Fermentation, Y - Oxidationn
X - Penapaian, Y - Pengoksidaan
X - Fermentation, Y - Addition
X - Penapaian, Y - Penambahan
X - Esterification, Y - Fermentation
X - Pengesteran, Y - Penapaian
Compound P reacts with ethanol in the presence of concentrated sulphuric acid to form a sweet smelling liquid. Which of the following structures might represent compound P?
Sebatian P bertindak balas dengan etanol dengan kehadiran asid sulfurik pekat untuk menghasilkan cecair berbau manis. Antara struktur berikut, yang manakah paling mungkin mewakili sebatian P?
