1
National5ChemistrySnapShotProgressCheck2
1 Anatomhas26protons,26electronsand30neutrons.
Theatomhas:
A atomicnumber26,massnumber56
B atomicnumber56,massnumber30
C atomicnumber30,massnumber26
D atomicnumber52,massnumber56
2
A
B
C
D
Thepurposeofthelimestoneintheblastfurnaceis:
toprovidetheenergyfortheprocess
toremovetheimpurities
toreducetheironoretoiron
tooxidisetheironore
3
Whichofthefollowingdiagramsshowstheapparatuswhichwouldallowasolublegas
toberemovedfromamixtureofgases?
C
A
B
D
4
A
B
C
D
Selecttheanswerthatshowsthecorrectformulaforiron(II)hydroxide.
FeOH2
Fe2OH
Fe(OH)2
Fe2(OH)
5
Whichofthefollowingisnotamemberofahomologousserieswithgeneralformula
CnH2n?
propane
propene
cyclobutane
but-1-ene
A
B
C
D
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2
6
A
B
C
D
7
A
B
C
D
0.25molofagashasametaloxidehasamassof15.5g.
Themetaloxideis:
Na2O
MgO
Al2O3
CuO
Thevolumeof0.5moll-1sodiumhydroxidethatwouldbeneutralisedby20cm3of
1.0moll-1sulphuricacidis:
80cm3
40cm3
10cm3
20cm3
8
A
B
C
D
Whichcompoundwouldnotbeanisomerofhexane?
1-methylpentane
2,3-dimethylbutane
2,2-dimethylbutane
2-methylpentane
9
Fe2O3+xCOyFe+3CO2
Thisequationwillbebalancedwhen:
x=1andy=2
x=2andy=2
x=3andy=2
x=2andy=3
A
B
C
D
10
A
B
C
D
Inthereactionbetweencoppersulphatesolutionandzincmetal:
thecopperionisoxidisedandthezincmetalreduced
thecoppermetalisoxidisedandthezincmetalreduced
thecoppermetalisreducedandthezincmetalisoxidised
thecopperionisreducedandthezincmetalisoxidised
11
A
B
C
D
Anacidicsolutioncontains
onlyhydrogenions
onlyhydroxideions
morehydrogenionsthanhydroxideions
morehydroxideionsthanhydrogenions
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3
12 Whichofthefollowingoxides,whenshakenwithwaterwouldgivean
alkalinesolution?
A calciumoxide
B nickeloxide
C nitrogenoxide
D sulphurdioxide
13 Petrolisamixtureofhydrocarbons.
Thetendencyofahydrocarbontoignitespontaneouslyismeasurebyitsoctane
number.
Hydrocarbon
OctaneNumber
1
3-methylpentane
74.5
2
butane
93.6
3
pentane
61.7
4
2-methylpentane
73.4
5
hexane
24.8
6
methylcyclopentane
91.3
Astudentmadethehypothesisthatasthechainlengthofthehydrocarbonincreases,
theoctanenumberdecreases.
Whichsetof3hydrocarbonsshouldhavetheiroctanenumberscomparedinorderto
testthishypothesis?
A 1,4,6
B 1,2,4
C 2,3,5
D 3,4,5
14
A
B
C
D
Areactionisendothermicif:
energyisrequiredtostartthereaction
heatisreleasedduringthereaction
thetemperaturedropsduringthereaction
thetemperaturerisesduringthereaction
15
A
B
C
D
Whichmetalcanbeextractedfromitsorebyheatalone
tin
zinc
lead
silver
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4
16 Theion-electronequationfortheoxidationandreductionstepsinthereactionbetweensulphiteions
andiron(III)ionsaregivenbelow:
A
Theredoxequationfortheoverallreactionis:
B
C
D
17 Theapparatusbelowwassetup.
A
B
C
D
Whichofthefollowingpairsofmetalswouldgivethehighestreadingonthe
voltmeter?
MetalX
MetalY
iron
zinc
magnesium
silver
zinc
silver
zinc
copper
18 Asectionofacondensationpolymerisshownbelow:
Oneofthemonomersis:
A
B
Thestructuralformulafortheothermonomeris:
C
D
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