Science Quiz / yr1 chemistry (episode VII)

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Defeating consumerism (via a ketamine addiction)

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

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