Organic chemistry 2

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

Front (Question)

alcohols functional group

Back (Answer)

-OH

Front (Question)

alcohols general formula

Back (Answer)

CnH2n+1OH

Front (Question)

name the alchohols

Back (Answer)

• methanol • ethanol • propanol • butanol

Front (Question)

molecular formula of methanol

Back (Answer)

CH3OH

Front (Question)

molecular formula of ethanol

Back (Answer)

C2H5OH

Front (Question)

structural formula of ethanol

Back (Answer)

CH3CH2OH

Front (Question)

molecular formula of propanol

Back (Answer)

C3H7OH

Front (Question)

structural formula of propanol

Back (Answer)

CH3CH2CH2OH

Front (Question)

molecular formula of butanol

Back (Answer)

C4H9OH

#10

Front (Question)

structural formula of butanol

Back (Answer)

CH3CH2CH2CH2OH

#11

Front (Question)

name the 3 methods of oxidising ethanol

Back (Answer)

• complete combustion • microbial oxidation • using an oxidising agent of potassium dichromate (VI)

#12

Front (Question)

word equation for combustion of ethanol

Back (Answer)

ethanol + oxygen —> carbon dioxide + water

#13

Front (Question)

symbol equation for combustion of ethanol w/state symbols

Back (Answer)

C2H5OH (l) + 3O2 (g) —> 2CO2 (g) + 3H2O (l)

#14

Front (Question)

how can you confirm that the combustion reaction of ethanol has occurred?

Back (Answer)

• the 2 products are CO2 and H2O • H2O = collect liquid which makes white anhydrous copper(II) sulfate turns blue • CO2 = collect gas which makes limewater turns cloudy

#15

Front (Question)

what bacteria in the air causes the oxidation of ethanol to occur?

Back (Answer)

acetobacter

#16

Front (Question)

word equation of microbial oxidation of ethanol

Back (Answer)

ethanol + oxygen —(acetobacter)—> ethanoic acid + water

#17

Front (Question)

symbol equation of microbial oxidation of ethanol w/state symbols

Back (Answer)

C2H5OH (l) + O2 (g) —(acetobacter)—> CH3COOH (l) + H2O (l)

#18

Front (Question)

what is ethanol heated with during the oxidation of ethanol by an oxidising agent?

Back (Answer)

• sulfuric acid (creates acidic conditions for the oxidising agent to work in) • oxidising agent - potassium dichromate (VI)

#19

Front (Question)

word equation for the oxidation of ethanol by an oxidising agent

Back (Answer)

ethanol + oxidising agent —(sulfuric acid + heat)—> ethanoic acid + water

#20

Front (Question)

what are the observations of the oxidation of ethanol by an oxidising agent

Back (Answer)

• colour change from orange to green • smells like vinegar

#21

Front (Question)

symbol equation for the oxidation of ethanol by an oxidising agent w/state symbols

Back (Answer)

C2H5OH (l) + 2[O] -(H2SO4 (aq) and heat)—> CH3COOH (l) + H2O(l)

#22

Front (Question)

what are the 2 main methods of manufacture of ethanol?

Back (Answer)

• hydration of ethene with steam • fermentation of glucose

#23

Front (Question)

conditions for hydration of ethene with steam to form ethanol

Back (Answer)

• 60-70 atm pressure • 300°C temperature • concentrated phosphoric acid catalyst

#24

Front (Question)

conditions for fermentation of glucose

Back (Answer)

• 30°C optimum temperature for enzymes (biolog. catalyst) in yeast = increases RoR • absence of oxygen to force yeast to respire anaerobically to produce ethanol • if oxygen was present no ethanol would be produced as the yeast would respire aerobically and make carbon dioxide and water