Materials & Energy Quiz Prelims at The Quiz Fest 17
-
Upload
bodhanapu-vishnu -
Category
Education
-
view
106 -
download
3
Transcript of Materials & Energy Quiz Prelims at The Quiz Fest 17
QUESTION1
• CoralReefs,theunderwaterstructurescreatedbymicroorganismscorals,ismademainlyofwhichmaterial?
Ironkillsstars!!
• Stainlesssteelisaveryimportantmaterialinourlife,itisanalloyandcomprisesof3metals.Ironbeingofthem,nametheothertwoelementswhichcomprisestainlesssteel.
Fireinthehole!
• LittleboywasmadewithU-235isotope.Whileontheotherhand,formakingFatman,someotherelementwasusedinsteadofuranium.
• Whichelement?
Carefulwhatyouwashfor
• Alsoknownashydroxylacid,Xisthemajorcomponentofacidrain.Itisalsoamainpartofmostjunkfoodsandcolddrinksavailableinthemarket.WhatisX?
QUESTION6
• Foamedpolystyrenewasmadecommerciallyforthefirsttimein1941byresearchersinDow’sChemicalPhysicsLab,wheretheyrediscoveredtheprocessalreadyachievedbySwedishscientistCarlGeorgMunters.Howdowepopularlyknowthissubstanceas?
Nowyouseeme
• BenjaminFranklin,inaletterwrites-
'Iimagineitwillbefoundprettygenerallytrue,thatthesameconvexityofglassthroughwhichamanseesclearestandbestatthedistanceproperforreading,isnotthebestforgreaterdistances.Therefore,Ihadformerlytwopairofspectacles,whichishiftedoccasionally,asintravellingisometimesread.Thiswasacauseoftrouble'
• WhatdidFranklininventtoovercomethe'trouble'?
MynameisOzymandias,kingofkings: Lookonmyworks,yeMighty,anddespair!
• Onwhichmonument,onecanfindthiscompoundFeP04.4H2O(IronHydrogenPhosphatehydrate)-whichgivesthemonumentauniqueproperty?
Withlowpowercomeslessresponsibilities?
• “Conventionalelectro-magneticenergymetersdidnotrecordconsumptioniftheloadwasverysmall.Theindicatortendednottomovewhenatnighttherewasnoelectricalload”
• WhatmisnomerpopularinIndiadoestheabovequoteexplain?
JesusChristMarie!Itsamineral!
• XisahydratedmagnesiumsilicatewiththechemicalformulaH2Mg3(SiO3)4orMg3Si4O10(OH)2.Inlooseform,itisthewidelyusedsubstanceknownas______(akaX).
• Itisthesoftestknownmineralandlistedas!ontheMoh'shardnessscale.
• Assuch,itcanbeeasilyscratchedbyafingernail.Ithasaspecificgravityof2.5-2.8,aclearordustylustreandistranslucenttoopaque.
QUESTION11
• Ironisthemostabundantmetalintheuniversebymassfraction.Whichisthesecondmostabundantmetalintheuniversebymassfraction?
Ineedadollar...
• ThematerialusedtomakeXisanalloyof2rareearthelements.TheestimatedcostofthemostadvancedversionofXisafewhundredmilliondollars.
• Someofthemany“unbelievable”featuresofXaretheUserInterfaceandthecomputerprovidingofflinesupporttothepersonusingX.
• ThemannerinwhichtheenergyfromthepowersourceisconvertedtoastabilizedelectricitysupplytoallowthevariouscomponentsofXtofunctioninthelessthanidealsituationinwhichanXmaybeused.WhatisX?
QUESTION13
• X,alsoknownasacetylsalicylicacidwithIUPACname2-acetoxybenzoicacidisasalicylatedrug,oftenusedasananalgesictorelieveminorachesandpains,asanantipyretictoreducefeverandasanantiinflammatorymedication.
• TheactiveingredientofXwasfirstdiscoveredfromthebarkofthewillowtreein1763byEdwardstoneofWadhamcollege,OxfordUniversity.Hehaddiscoveredsalicylicacid.XwasfirstsynthesizedbyFelixhoffmann,achemistwiththeGermancompanyBayerin1897.
QUESTION14• Indiastartingitsownnuclearprogramwasmarkedbythefoundingofanorganisation.Whichorganisation?
QUESTION15• XwasinventedbyY.Yobtainedpatentsforhisinventionin1867.Afteritsintroduction,Xrapidlygainedwide-scaleuseasasafealternativetoblackpowder.
• YcombinedAmmoniumCyanatewithGlycerineformingacompoundTriNitroGlycerine(TNG).twaskeptinabowlwhileYwasresearchinginhislab.Onthefloorwaskieselguhr(Diatomaceousearth)andthebowlfellonit.HencethecompundXwascreated.
• (Hint:Followingitsdiscovery,theworldeconomyhadahuge“boom”)
Mypreciousss• ThenameofthismetalderivesfromaSpanishwordwhichmeans“littlesilver”,becauseitwasfirstencounteredinasilvermine.
• Itistheleastreactivemetal,sinceithasremarkableresistancetocorrosion,evenathightemperatures,itisthereforeconsideredanoblemetal.
• Itisnowusedincatalyticconverters,laboratoryequipment,electricalcontactsandelectrodes,thermometersanddentistryequipment.Beingaheavymetal,itleadstohealthissuesuponexposuretoitssalts,butduetoitscorrosionresistance,itisnotastoxicassomemetals.
• Whichmetalarewetalkingaboutwhichisalsoconsideredasasymbolofprestige?
QUESTION17
• PureIronhas5differentcrystallinephasesinitssolidstateatvarioustemperaturesandpressures.HowmanycrystallinephasesdoesPureIce(solidH2O)haveatitssolidstate?
QUESTION18• ThislegendarysteelgetsitsnamefromtheTamilwordurukku,ortheKannada/TeluguwordUkku,meaningsteel.
• AusHajr,anArabpoet,wroteinadmirationinAD540that“Ithasawaterwhosewavystreaksareglistening.Itislikeapondoverwhosesurfacethewindisgliding.Thesmithhasworkedoutinagrainasifitwerethetrailofsmallblackantsthathadtrekkedoveritwhileitwasstillsoft.”
• NamethismostfamousproductofmedievalIndianmetallurgy.
QUESTION20
• Xistheleaststableelementknowntomantoday.Itwassynthesisedin2002inRussiaandhasthehighestatomicandmassnumbersofallelementsthatexistpresently.Xistheonlyelementtobenamedafterapersonwhoiscurrentlyalive.IdentifyX