m m
1. Amtentativemexplanationmformamsetmofmobservationsmthatmcanmbemtestedmbymfurt
hermexperimentationmismreferredmtomas
A) amhypothesis. B)m amlaw. C)m amtheory.
D)mnonemofmthemabove.mAns:m A Category:m Easy
Section:m1.2
2. Amconcisemverbalmormmathematicalmstatementmofmamrelationshipmbetweenmphenomenamthat
mism
alwaysmthemsamemundermthemsamemconditionsmismreferredmtomas
A) amhypothesis. B)m amlaw. C)m amtheory.
D)mnonemofmthemabove.mAns:m B Category:m Easy
Section:m1.2
3. Amunifyingmprinciplemthatmexplainsmambodymofmfactsmandmrelationsmismreferredmtomas
A) amhypothesis. B)m amlaw. C)m amtheory.
D)mnonemofmthemabove.mAns:m C Category:m Easy
Section:m1.2
4. Completemthemfollowingmsentence.m Amhypothesismis
A) amtentativemexplanationmformamsetmofmobservationsmthatmcanmbemtestedmbymfurt
hermexperimentation.
B) amstatementmdescribingmamrelationshipmbetweenmphenomenamthatmismalwaysmthemsa
memundermthemsamemconditions.
C) amunifyingmprinciplemthatmexplainsmambodymofmfactsmandmrelations.
D) ammodelmusedmtomvisualizemtheminvisibl
e.mAns:m A Category:m Easy Section:m 1.2
5. Completemthemfollowingmsentence.m Amscientificmlawmis
A) amtentativemexplanationmformamsetmofmobservationsmthatmcanmbemtestedmbymfurt
hermexperimentation.
B) amstatementmdescribingmamrelationshipmbetweenmphenomenamthatmismalwaysmthemsa
memundermthemsamemconditions.
C) amunifyingmprinciplemthatmexplainsmambodymofmfactsmandmrelations.
D) ammodelmusedmtomvisualizemtheminvisibl
e.mAns:m B Category:m Easy Section:m 1.2
6. Completemthemfollowingmsentence.m Amtheorymis
A) amtentativemexplanationmformamsetmofmobservationsmthatmcanmbemtestedmbymfurt
hermexperimentation.
B) amstatementmdescribingmamrelationshipmbetweenmphenomenamthatmismalwaysmthemsa
memundermthemsamemconditions.
C) amunifyingmprinciplemthatmexplainsmambodymofmfactsmandmrelations.
D) ammodelmusedmtomvisualizemtheminvisibl
e.mAns:m C Category:m Easy Section:m 1.2
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, Chapterm01:mIntroductio
n
7. Choosemthemresponsemthatmincludesmallmthemitemsmlistedmbelowmthatmarempuremsubstances.
i.morangemjuice ii.msteam iii.moceanmwater iv.moxygen v.mvegetablemsoup
A)m i,miii,mv B)m ii,miv C)m i,miii,miv D)m ivmonly
E)mallmofmthemmarempuremAns:m B Category:m Easy
Section:m1.2
8. Whichmofmthemfollowingmismanmexamplemofmamphysicalmproperty?
A) corrosivenessmofmsulfuricmacid
B) toxicitymofmcyanide
C) flammabilitymofmgasoline
D) neutralizationmofmstomachmacidmwithmanmantacid
E) leadmbecomesmamliquidmwhenmheatedmtom601
CmAns:m E Category:m Easy Section:m1.4
9. Whichmonemofmthemfollowingmismanmexamplemofmamphysicalmproperty?
A) dynamitemexplodes D) icemfloatsmonmtopmofmliquidmwater
B) meatmrotsmifmitmismnotmrefrigerated E) amsilvermplattermtarnishes
C) gasolinemburns
Ans:m D Category:m Easy Section:m 1.4
10. Whichmonemofmthemfollowingmrepresentsmamphysicalmchange?
A) water,mwhenmheatedmtom100 C,mformsmsteam
B) bleachmturnsmhairmyellow
C) sugar,mwhenmheated,mbecomesmbrown
D) milkmturnsmsour
E) apples,mwhenmexposedmtomair,mturnmbrow
nmAns:m A Category:m Easy Section:m 1.4
11. Allmofmthemfollowingmarempropertiesmofmsodium.mWhichmonemismamphysicalmpropertym
ofmsodium?
A) Itmismamsurfacemturnsmblackmwhenmfirstmexposedmtomair.
B) Itmismamsolidmatm25 Cmandmchangesmtomamliquidmwhenmheatedmtom98 C.
C) Whenmplacedminmwatermitmsizzlesmandmamgasmismformed.
D) Whenmplacedminmcontactmwithmchlorinemitmformsmamcompoundmthatmmeltsmatm801 C.
E) Sodiummismnevermfoundmasmthempuremmetalminmnatur
e.mAns:m B Category:m Easy Section:m1.4
12. Allmofmthemfollowingmarempropertiesmofmtin.m Whichmonemismamchemicalmpropertymofmtin?
A) Tinmcanmbemhammeredmintomamthinmsheet.
B) Atm–40 Cmamsheetmofmtinmcrumblesmtomamgraympowder.
C) Tinmmeltsmatm231.9 C.
D) Whenmambarmofmtinmismbent,mitmemitsmanmaudiblem“cry”.
E) Tinmerodesmwhenmaddedmtomhydrochloricmacid,mandmamclearmgasmfor
ms.mAns:m E Category:m Medium Section:m1.4
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, Chapterm01:mIntroductio
n
13. Whichmonemofmthemfollowingmrepresentsmamchemicalmchange?
A) boilingmwatermtomformmsteam
B) burningmampiecemofmcoal
C) heatingmleadmuntilmitmmelts
D) mixingmironmfilingsmandmsandmatmroommtemperature
E) breakingmglass
Ans:m B Category:m Medium Section:m1.4
14. Whichmofmthemfollowingmdoesmnotmrepresentmamchemicalmchange?
A) amfreshlymcutmapplemturnsmbrown
B) milkmturnsmsourmonmstandingmatmroommtemperature
C) whenmcooledmtom0 C,mliquidmwatermbecomesmice
D) fryingmanmegg
E) fermentationmofmsugarmtomalcoholmA
ns:m C Category:m Easy
Section:m 1.4
ThemSImprefixesmnanomandmdecimrepresent,mrespectively:
15. 15.
A) 10–m9m andm 10–m6. D) 109m andm 10–m6.
–3
6
B) 10 m andm 10 m . E) 10–m9m andm 10–
1
m .
3 –3
C) 10 m andm 10 m .
Ans:m E Category: Easy Section:m 1.7
16. 16.
ThemSImprefixesmmillimandmmegamrepresent,mrespectively:
A) 106m andm 10–m6. D) 10–m3m andm 109.
B) 10–m3m andm 106. E) 10–m6m andm 10–
3
m .
3 –6
C) 10 m andm 10 m .
Ans:mSI
17. The m B Category: Easy Section:m 1.7
mprefixesmkilomandmcentimrepresent,mrespectively:
A) 103m andm 10–m2. D) 10–m6m andm 102.
B) 106m andm 10–m1. E) 102m andm 10–m3.
C) 10–m3m andm 10–m2.
Ans:m A Category:m Easy Section:m 1.7
18. Amnanometermcorrespondsmto:
A) 10–m2m meters. D) 10–m9m meters.
–3
B) 10 m m meters. E) 10–m12m meters.
C) 10–m6m meters.
Ans:m D Category:m Easy Section:m 1.7
19. Ammicrolitermcorrespondsmto:
A) 10–m2m liters. B)m 10–m3m liters. C)m 10–m6m liters. D)m 10–m9m liters. E)m10–
12
m mliters.m
Ans:m C Category:m Easy Section:m1.7
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