C.10 Organic Reactions

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

Card preview (24)

Front (Question)

What is a functional group?

Back (Answer)

• a particular group of atoms • responsible for how a molecule reacts

Front (Question)

Functional group of an alkene

Back (Answer)

C=C

Front (Question)

• How do alkenes react with oxygen • How is it different to alkanes

Back (Answer)

• Alkenes burn with a yellow smoky flame • ## Can do complete combustion BUT usually incomplete • Release less energy than alkanes so aren’t used as fuels • Used for polymers and plastic

Front (Question)

General addition reactions of alkenes

Back (Answer)

• Double bond is very reactive • Molecules that react with alkenes ‘add across the double bond’ • aka double bond is broken, molecule added either side

Front (Question)

Addition reaction: hydrogen

Back (Answer)

• Goes from alkEne to alkAne • Nickel catalyst • 60C

Front (Question)

Addition reaction: Steam

Back (Answer)

• alkEne to alcohol • Over 100 C

Front (Question)

Addition reaction: halogen

Back (Answer)

• Double bond breaks • Diatomic molecule is added (one on each bond)

Front (Question)

Why is there a colour change: alkene + bromine

Back (Answer)

• As the double bond is broken • A reaction can happen

Front (Question)

Back (Answer)

#10

Front (Question)

What is the functional group of an alcohol

Back (Answer)

• OH

#11

Front (Question)

What are the first 4 alcohols

Back (Answer)

• Methanol • Ethanol • Propanol • Butanol

#12

Front (Question)

Writing alcohol chemical formula

Back (Answer)

• You have to keep OH at the end • CH3CH2OH

#13

Front (Question)

4 main uses of alcohol

Back (Answer)

• Solvent • Drinks • Antiseptics • Fuel

#14

Front (Question)

Alcohol reactions: Sodium

Back (Answer)

• An -oxide and hydrogen is created • ethanol + sodium -> sodium ethoxide + hydrogen

#15

Front (Question)

Alcohol reactions: Combustion

Back (Answer)

• Complete combustion • Ethanol + oxygen -> carbon dioxide + water

#16

Front (Question)

Alcohol reactions: Water

Back (Answer)

• Shortest hydrocarbon mix easily to produce a solution • The longer the hydrocarbon the harder to mix • two distinct layers maybe left

#17

Front (Question)

Alcohol reactions: oxidising agent

Back (Answer)

• Oxidising agent = [O] • alcohol + [O] -> carboxylic acid + water • ethanol + 2[O] -> ethanoic acid + water • Wine -> vinegar

#18

Front (Question)

How is alcohol formed

Back (Answer)

• Fermentation • Ethene

#19

Front (Question)

Alcohol from fermentation

Back (Answer)

• Glucose -> ethanol + Carbon dioxide Conditions - yeast or bio catalyst - 40C - anaerobic Bio fuel - Renewable resource - Made from plants

#20

Front (Question)

Alcohol from ethene

Back (Answer)

• Ethene + Steam -> ethanol Conditions - Over 100C (steam) Ethene - Get from cracking - Crude oil -> finite resource

#21

Front (Question)

Carboxylic acid functional

Back (Answer)

• COOH • A double bond between C and O • Single bond between C and O • Single bond between O and H

#22

Front (Question)

First 4 carboxylic acid

Back (Answer)

• Methanoic Acid • Ethanoic Acid • Propanoic Acid • Butanoic Acid

#23

Front (Question)

Writing carboxylic acid chemical formula

Back (Answer)

• Keep COOH at the end • Molecular : C2H5COOh • Structural: CH3CH2COOH

#24

Front (Question)

Different types of formulas

Back (Answer)

Display - Drawing out the bond Molecular - All elements+ functional group Structural: - Left to right