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1、2013.03.06选择填空1.TheNaHCO3isfiltered,dried,and____toNaCO3.(a)calcined(b)heated(c)combusted(d)thermallydecomposed2.Whenanammoniatedsolutionofsaltisbubbledbycarbondioxide,theprocessiscalled____.(a)oxidation(b)decomposition(c)calcine(d)carbonation3.Afterfiltrat
2、ion,theliquidportionisdefinedas____.(a)liquor(b)residual(c)waste(d)liquidcrystal4.ToremovesomewaterfromwetCaCO3,____isavailable.(a)metathesis(b)electrolysis(c)drying(d)solubilityproduct5.Solid-liquidseparationusuallyinvolves_______operationaswellasothers.(a
3、)chromatography(b)absorption(c)filtration(d)evaporation6.WhenammoniatedsolutionofsaltiscarbonatedwithCO2,____isprecipitated.(a)Ca(HCO3)2(b)NaHCO3(c)CaCO3(d)none7.Solvayprocess,presentinchlor-alkaliindustry,precipitates____asitsfinalproductbyrecyclingammonia
4、.(a)NaHCO3(b)CaCO3(c)Na2CO3(d)NaCl8.Sodiumchloridereactswithammoniumbicarbonatetogeneratesodiumbicarbonateandammoniumchloride,i.e.,NaCl+NH4HCO3—NaHCO3+NH4Cl.Thisreactioniscalled____.(a)reduction(b)oxidation(c)metathesis(d)crystallization9.InSolvayProcess,se
5、parationbetweenNaHCO3precipitatesandliquorshouldbecarriedoutthrough____.(a)distillation(b)filtering(c)concentration(d)drying10.Whichofthefollowingisclassifiedintometathesis?(a)H2+O2—H2O(b)Na2SO4+BaCl2—BaSO4+NaCl(c)HCl+NaOH—NaCl+H2O(d)Zn+HCl—ZnCl2+H211.CaCO3
6、canbe____intoCaOandCO2withoutadditionofanyothersubstance.(a)decomposed(b)roasted(c)combusted(d)calcined12.Inchlor-alkaliindustry,thereisareaction:NH4HCO3+NaCl→NaHCO3↓+NH4Clclassifiedinto____.(a)redox(b)metathesis(c)neutralization(d)coordination13.Inchemical
7、laboratory,weoftenuse____tocoolgasintoliquid,e.g.,weoftenusesuchdevicechangewatervaporintoliquid.(a)heatexchanger(b)reformer(c)condenser(d)fractionaltower14.Topurifyaspecificcomponentinsolution,____isaproperchoice.(a)fluidflow(b)masstransfer(c0crystallizati
8、on(d)materialbalance找同意词1.Processdevelopmentforanewproductdependsonthingssuchasthescaleonwhichitistobemanufactured,theby-productformedandtheirremoval/recovery,andrequiredpurity.(a)unwantedsubstances(b)
