Science Quiz / yr1 chemistry (episode VII)

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QUIZ: Defeating consumerism (via a ketamine addiction)

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

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