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632082
Higher Chemistry - Unit 2
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Mind Map on Higher Chemistry - Unit 2, created by Matthew Orr on 03/13/2014.
Mind Map by
Matthew Orr
, updated more than 1 year ago
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Matthew Orr
about 11 years ago
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Resource summary
Higher Chemistry - Unit 2
Section 5 - Hydrocarbons and Fuels
Name and Structure
Branched
Alkynes
Cycloalkanes
Alkenes
Alkanes
Addition Reactions
Hydrogenation
+H2
Hydration
+H2O
Test for unsaturation
+Br2
Halide atoms
H-X
CFCs
Destroy Ozone layer
Ozone (O3)
Absorbs UV rays
From old fridges and aerosols
Renewable Fuels
Hydrogen
Alcohols
Advantages
Disadvantages
Biogas
CH4
Aromatics
Benzene
Structure
C6H6
Properties
Saturated
Increases octane no.
Carcinogenic
Does not conduct electricity
Petrol
Blend of hydrocarbons
Hydrocracking
Reforming
Octane no.
Branched
Cyclic
Aromatic
Section 6 - Alcohols and Carbonyls
Diols
Primary, Secondary, Tertiary
Ethanol
Uses
Production
Fermentation
From ethene
Alkanol family
Uses
Propeties
Structures
Oxidation Reactions
Tertiary do not oxidise
Secondary
Ketone
None
Primary
Aldehyde
Carboxylic acid
Reagents
Tollen's Reagent
Silver mirror
Acidified Potassium Dichromate
Orange to blue
Fehling's Reagent
Blue to brick-red
Hot Copper Oxide
Black to brown
Section 7 - Esters, Oils and Fats
Soaps
Making soaps from fatty acids
Alkaline hydrolysis
NaOH
Oils and Fats
Structure (glycerol)
Properties
Saturated or unsaturated
Esters
Naming
Making (PPA)
Structure
Functional group
Breaking
Hydrolysis
Section 8 - Polymers
Protein Structure
Fibrous
Helix
Sheet
Globular
Enzymes
Optimum pH = 7-9
Optimum temperature = 37
Lock and key
Outside optimum conditions, enzymes are denatured
Proteins
Broken up by hydrolysis
Condensation polymers
Contain an -NH2 + -COOH group
Made up of amino acid monomers
Analysed with chromatography
Condensation Polymers
Starch
Glucose
Polyesters
Diol + Diacid
Polyamides
Nylon
Diamine + Diacid
Contain a peptide link
Specialised Polymers
Biopol
Polyester
Biodegradable
Surgical stitches
Bakelite
Thermosetting
Cross-linked
Polyvinylcarbazole
Addition
Photoconducting
Photocopiers
Kevlar
Bulletproof vests
Loss of HCl but still condensation
Polyethenol
Ester exchange
Surgical stitches
Polyethyne
Addition
Conducts electricity
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