p p
1. Aptentativepexplanationpforpapsetpofpobservationspthatpcanpbeptestedpbypfurtherpe
xperimentationpispreferredptopas
A) aphypothesis. B)p aplaw. C)p aptheory.
D)pnonepofpthepabove.pAns:p A Category:p Easy
Section:p1.2
2. Apconcisepverbalporpmathematicalpstatementpofpaprelationshippbetweenpphenomenapthatpispa
lwayspthepsamepunderpthepsamepconditionspispreferredptopas
A) aphypothesis. B)p aplaw. C)p aptheory.
D)pnonepofpthepabove.pAns:p B Category:p Easy
Section:p1.2
3. Apunifyingpprinciplepthatpexplainspapbodypofpfactspandprelationspispreferredptopas
A) aphypothesis. B)p aplaw. C)p aptheory.
D)pnonepofpthepabove.pAns:p C Category:p Easy
Section:p1.2
4. Completepthepfollowingpsentence.p Aphypothesispis
A) aptentativepexplanationpforpapsetpofpobservationspthatpcanpbeptestedpbypfurtherpe
xperimentation.
B) apstatementpdescribingpaprelationshippbetweenpphenomenapthatpispalwayspthepsamepu
nderpthepsamepconditions.
C) apunifyingpprinciplepthatpexplainspapbodypofpfactspandprelations.
D) apmodelpusedptopvisualizepthepinvisible.p
Ans:p A Category:p Easy Section:p 1.2
5. Completepthepfollowingpsentence.p Apscientificplawpis
A) aptentativepexplanationpforpapsetpofpobservationspthatpcanpbeptestedpbypfurtherpe
xperimentation.
B) apstatementpdescribingpaprelationshippbetweenpphenomenapthatpispalwayspthepsamepu
nderpthepsamepconditions.
C) apunifyingpprinciplepthatpexplainspapbodypofpfactspandprelations.
D) apmodelpusedptopvisualizepthepinvisible.p
Ans:p B Category:p Easy Section:p 1.2
6. Completepthepfollowingpsentence.p Aptheorypis
A) aptentativepexplanationpforpapsetpofpobservationspthatpcanpbeptestedpbypfurtherpe
xperimentation.
B) apstatementpdescribingpaprelationshippbetweenpphenomenapthatpispalwayspthepsamepu
nderpthepsamepconditions.
C) apunifyingpprinciplepthatpexplainspapbodypofpfactspandprelations.
D) apmodelpusedptopvisualizepthepinvisible.p
Ans:p C Category:p Easy Section:p 1.2
Pagep1
, Chapterp01:pIntroduction
7. Choosepthepresponsepthatpincludespallpthepitemsplistedpbelowpthatpareppurepsubstances.
i.porangepjuice ii.psteam iii.poceanpwater iv.poxygen v.pvegetablepsoup
A)p i,piii,pv B)p ii,piv C)p i,piii,piv D)p ivponly
E)pallpofpthempareppurepAns:p B Category:p Easy
Section:p1.2
8. Whichpofpthepfollowingpispanpexamplepofpapphysicalpproperty?
A) corrosivenesspofpsulfuricpacid
B) toxicitypofpcyanide
C) flammabilitypofpgasoline
D) neutralizationpofpstomachpacidpwithpanpantacid
E) leadpbecomespapliquidpwhenpheatedptop601 Cp
Ans:p E Category:p Easy Section:p1.4
9. Whichponepofpthepfollowingpispanpexamplepofpapphysicalpproperty?
A) dynamitepexplodes D) icepfloatsponptoppofpliquidpwater
B) meatprotspifpitpispnotprefrigerated E) apsilverpplatterptarnishes
C) gasolinepburns
Ans:p D Category:p Easy Section:p 1.4
10. Whichponepofpthepfollowingprepresentspapphysicalpchange?
A) water,pwhenpheatedptop100 C,pformspsteam
B) bleachpturnsphairpyellow
C) sugar,pwhenpheated,pbecomespbrown
D) milkpturnspsour
E) apples,pwhenpexposedptopair,pturnpbrownp
Ans:p A Category:p Easy Section:p 1.4
11. Allpofpthepfollowingpareppropertiespofpsodium.pWhichponepispapphysicalppropertypofps
odium?
A) Itpispapsurfacepturnspblackpwhenpfirstpexposedptopair.
B) Itpispapsolidpatp25 Cpandpchangesptopapliquidpwhenpheatedptop98 C.
C) Whenpplacedpinpwaterpitpsizzlespandpapgaspispformed.
D) Whenpplacedpinpcontactpwithpchlorinepitpformspapcompoundpthatpmeltspatp801 C.
E) Sodiumpispneverpfoundpasptheppurepmetalpinpnature.p
Ans:p B Category:p Easy Section:p1.4
12. Allpofpthepfollowingpareppropertiespofptin.p Whichponepispapchemicalppropertypofptin?
A) Tinpcanpbephammeredpintopapthinpsheet.
B) Atp–40 Cpapsheetpofptinpcrumblesptopapgrayppowder.
C) Tinpmeltspatp231.9 C.
D) Whenpapbarpofptinpispbent,pitpemitspanpaudiblep“cry”.
E) Tinperodespwhenpaddedptophydrochloricpacid,pandpapclearpgaspforms.p
Ans:p E Category:p Medium Section:p1.4
Pagep2
, Chapterp01:pIntroduction
13. Whichponepofpthepfollowingprepresentspapchemicalpchange?
A) boilingpwaterptopformpsteam
B) burningpappiecepofpcoal
C) heatingpleadpuntilpitpmelts
D) mixingpironpfilingspandpsandpatproomptemperature
E) breakingpglass
Ans:p B Category:p Medium Section:p1.4
14. Whichpofpthepfollowingpdoespnotprepresentpapchemicalpchange?
A) apfreshlypcutpapplepturnspbrown
B) milkpturnspsourponpstandingpatproomptemperature
C) whenpcooledptop0 C,pliquidpwaterpbecomespice
D) fryingpanpegg
E) fermentationpofpsugarptopalcoholpAns
:p C Category:p Easy Section:p 1.4
ThepSIpprefixespnanopandpdeciprepresent,prespectively:
15. 15.
A) 10–p9p andp 10–p6. D) 109p andp 10–p6.
B) 106p andp 10–p3. E) 10–p9p andp 10–p1.
3 –3
C) 10 p andp 10 p .
Ans:p E Category: Easy Section:p 1.7
ThepSIpprefixespmillipandpmegaprepresent,prespectively:
16. 16.
A) 106p andp 10–p6. D) 10–p3p andp 109.
B) 10–p3p andp 106. E) 10–p6p andp 10–p3.
3 –6
C) 10 p andp 10 p .
Ans:p B Category: Easy Section:p 1.7
17. ThepSIpprefixespkilopandpcentiprepresent,prespectively:
A) 103p andp 10–p2. D) 10–p6p andp 102.
–1
6
B) 10 p andp 10 p . E) 102p andp 10–p3.
C) 10–p3p andp 10–p2.
Ans:p A Category:p Easy Section:p 1.7
18. Apnanometerpcorrespondspto:
A) 10–p2p meters. D) 10–p9p meters.
B) 10–p3p meters. E) 10–p12p meters.
C) 10–p6p meters.
Ans:p D Category:p Easy Section:p 1.7
19. Apmicroliterpcorrespondspto:
A) 10–p2p liters. B)p 10–p3p liters. C)p 10–p6p liters. D)p 10–p9p liters. E)p10–
12
p pliters.pAns:p C Category:p Easy Section:p1.7
Pagep3