GCSE Chemistry Specification

OCR A J248

Section C6.2: Organic chemistry

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#C6.2a

recognise functional groups and identify members of the same homologous series

homologous series, of alkanes, alkenes, alcohols and carboxylic acids

#C6.2b

name and draw the structural formulae, using fully displayed formulae, of the first four members of the straight chain alkanes, alkenes, alcohols and carboxylic acids

#C6.2c

predict the formulae and structures of products of reactions of the first four and other given members of the homologous series of alkanes, alkenes and alcohols

combustion; addition of bromine and hydrogen across a double bond; oxidation of alcohols to carboxylic acids using potassium manganate(VII)

#C6.2d

recall the basic principles of addition polymerisation by reference to the functional group in the monomer and the repeating units in the polymer

#C6.2e

explain the basic principles of condensation polymerisation

reference to the functional groups of the monomers, the minimum number of functional groups within a monomer, the number of repeating units in the polymer, and simultaneous formation of a small molecule, e.g. a polyester or polyamide, using block diagrams to represent polymers

#C6.2f

describe practical techniques to make a polymer by condensation

#C6.2g

deduce the structure of an addition polymer from a simple alkene monomer and vice versa

the following representation of a polymer [repeat unit]n

#C6.2h

recall that DNA is a polymer made from four different monomers called nucleotides and that other important naturally-occurring polymers are based on sugars and amino-acids

the names of the nucleotides

#C6.2i

recall that it is the generality of reactions of functional groups that determine the reactions of organic compounds

#C6.2j

describe the separation of crude oil by fractional distillation

the names of the fractions

#C6.2k

explain the separation of crude oil by fractional distillation

molecular size and intermolecular forces

#C6.2l

describe the fractions as largely a mixture of compounds of formula CnH2n+2 which are members of the alkane homologous series

#C6.2m

recall that crude oil is a main source of hydrocarbons and is a feedstock for the petrochemical industry

#C6.2n

explain how modern life is crucially dependent upon hydrocarbons and recognise that crude oil is a finite resource

#C6.2o

describe the production of materials that are more useful by cracking

conditions and reasons for cracking and some of the useful materials produced

#C6.2p

recall that a chemical cell produces a potential difference until the reactants are used up

#C6.2q

evaluate the advantages and disadvantages of hydrogen/oxygen and other fuel cells for given uses

the chemistry of the hydrogen/oxygen fuel cell