Science Quiz / yr1 chemistry (episode VII)

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Defeating consumerism (via a ketamine addiction)

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phenyl group features in which polymer (used in packaging and cups)
nitrogen oxide radicals formed from l_____ strikes
alcohol + hydrogen halide -> _______
high electron density attracts _______
o2 ------UV------> 2_:
if multiple halogens are present in a haloalkane, they are listed in ______ order
PVC can be a flexible or r_____ polymer
unsaturated alkene molecules undergo _____ ______ to produce long saturated chains
product of alcohol dehydration reaction (/2)
ozone layer is the outer layer of the ______
prefix for a haloalkane containing iodine
high grade PVC obtained by p____ from solvent
alkenes and steam react in a ______ reaction
addition polymers have high m______ m______
cl. + o3 --> O2 + _____. (propagation step 1)
recycled polymers are cut into ______ before being manufactured into new products
many alkene based polymers are (n____ b_____)
discarded polymers have to be ______ by type
polyphenylethene is a good thermal ________
molecular formula of phosphoric acid
rate of formation of ozone =
radical formed by lightning strikes
atom or group of atoms which is attracted to an electron rich centre and accepts an electron
an alkene react with steam to form an _____
what feature of polymers makes them suitable for storing food or chemicals?
bioplastics produced from plant o_____
when hit by UV, carbon-halogen bonds split via _____ ______
radical formed by photodissociation is a very reactive i_____
extremely large molecules formed from many thousands of repeat units
the chemical and thermal processes that can reclaim monomers, gases or oil from waste polymers
bioplastics produced from c_____
_____ absorbs most of the biologically damaging UV rays
the biologically damaging UV rays from the sun
in pvc recycling, the solvent is r______
polymer used pipes
no. + o3 -> No2. + __ (propagation step 1)
f2ccl2 is a
recycling process is undermined if polymers are ______
no2. + o -> ___ + o2
after photodissociation, they next step is called p______
molecules that contain at least one halogen atom joined onto a carbon chain
in the stratosphere, the ozone is continually formed and broken down by action of ____
condition necessary for alcohol dehydration
cf2cl2---->cf2cl. + __
when recycling pvc, a s_____ is used to dissolve the polymer
product of refluxing an alcohol with a concentrated acid catalyst
pi electrons can induce a dipole in n____ ______ molecules
chlorofluorocarbon use (/3) (s___)
o2 ------UV------> 2_
a compound containing carbon, hydrogen and at least one halogen
rate ozone is broken down=
CFCs form _____ _____ that catalyse the breakdown of the ozone layer
during a hydration reaction, which chemical groups does steam add across the double bond?(/2
partially _______ charged part of electrophile obtains electrons via h______ ______
industrial use of hydration reaction to turn ethene into _______
____ based polymers have a serious environmental impact
condition for synthesis of haloalkane from alcohol
very little ____ reaches the earth's surface
bioplastics produced from plant s_____
more UV-B increases risk of (/2)
concentrated phosphoric acid catalyses h_____ reactions
reactant for synthesis of haloalkane from alcohol (/3)
c2h2cl2 is a
chlorofluorocarbon use (/3) (r_____)
radiation induced breakdown is called
waste polymers are _______ to produce heat
high energy UV rays break oxygen down into ______ _______
_______ are rarely found in nature as they are naturally broken down
PVC can be a rigid or f____ polymer
alchols react with ____ ____ to form haloalkanes
catalyst for breakdown of ozone (______ ______)
what type of material offers a sustainable alternative to oil based products
pvc releases which corrosive gas
polymer used in nonstick pans
chcl3 is a
once sorted, polymers are chopped into ______
PVC is also called
cf3br is a
a carbon-halogen split by UV forms
product of synthesis of haloalkane from alcohol (/3)
after refluxing a tertiary alcohol with acidified dichromate (VI) what is the colour of the solution?
ptfe stands for
dumping PVC is u______
reaction mechanism for saturating alkenes is called
catalyst of hydration reaction (alkene->alcohol) must be a c_______ a________ catalyst
o2 + __ --->O3
______ addition can occur between an alkene and a nonpolar molecule
CFCs are very stable due to which bond (symbolised by Z-Y)
catalyst for alcohol dehydration
usually a cation or molecule containing a partially positive charge
alcohol dehydration is an _______ reaction
molecules that undergo addition polymerisation are ______
electrophilic addition s_____ a_______
compounds used in air conditioning, refrigerants and aerosol propellants
prefix for a haloalkane containing fluorine
product of synthesis of haloalkane from alcohol (/3)
in electrophilic addition, pi electrons interact with the electrons of the non polar molecule. _______ them
not possible to further oxidise ketones using
radicals in ozone depletion act as ______
product of synthesis of haloalkane from alcohol (/3)
chlorofluorocarbon use (/3) (f_____ r______)
after refluxing a secondary alcohol with acidified dichromate (VI) what is the colour of the solution?
chemical species that upsets the ozone equilibrium
polyethene production via heating a ethene at a high ______
electrophilic addition ends when a negatively charged ion binds to a
polymer flakes are ______ and dried
specific arrangement of atoms in a polymer that repeats over and over (r_____ _____)
recycling polymers reduces environmental impact because it conserves the f_____ f_____ f_____
when you react an unsymmetrical alkene with an unsymmetrical compound. how many products are possible?
secondary alcohols are oxidised to
synthesis of haloalkane from an alcohol is a____ reaction
double bond in an alkene is an area of h____ _____ _____
to ensure reaction goes to completion, secondary alcohol is ______ with the oxidising mixture
more UV-B increases risk of (/2)
products of feedstock recycling resemble c_____ o_____
partially ______ charged part of the electrophile bonds with the alkene
by product of secondary alcohol oxidation
addition polymers are made from how many types of monomer?
o2 + O: --->O3
reactant for synthesis of haloalkane from alcohol (/3)
a______ p_____ are made from one type of monomer
cfcs remain stable until they reach the
product of alcohol dehydration reaction (/2)
single cfc molecule promotes breakdown of how many ozone molecules?
during a hydration reaction, which chemical groups does steam add across the double bond?(/2)
clo. + _ ---> cl. + O2 (propagation step 2)
______ are often used in pesticides
prefix for a haloalkane containing bromine
polymer flakes are washed and d_____
reactant for synthesis of haloalkane from alcohol (/3)
polymers derived from petroleum or natural gas have a high s____ e_____ v_____
_____ of ozone allows more UV-B reach the surface
prefix for a haloalkane containing chlorine
disposal of PVC is hazardous due to the high ____ content
after refluxing a primary alcohol with acidified dichromate (VI) what is the colour of the solution?
electrophilic addition ends when a carbocation binds to a _____ charged ion
molecular formula of ozone
addition reaction has ___ possible products
hydrogen chloride gas is c______
O: + __ ->>>>> O3
washed and dried polymer flakes are then ______
polymer used in guttering
reaction that removes water from starting material
polymer used in plastic bags
polystyrene also known as
o2 ------UV------> _O:

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