食品检验工试题库答案

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1、食品检验工（高级）试题库答案一、判断题V・9.18XV&17.VV-XXVX765.2-34X-XV65.42i345463.XVV72.••——■8190VX7.16X6.V5.XC3.V15.X14.X71.XXVX•<210567XV•••O988XVV5.432-34X-XXVVX4321-092-34566XXVVVVV322-3X79:X••78X87.D6.A15.B16.CC23.A24.AA31.C32.CA39.B40.CC47.A4&BA55.D56.AD63.B64.BX・X■••212■・3VW••

2、•21012-3•••415059XVV40.49.68.X10.19.28.37.46.55.64.X9&76345®XV-XVVVL09&712-23456.58.XVVV84.X67.X5.6X・•7675X74.X73.题选单/一/

3、10.B11.C12.B13.C14.18.B19.C20.B21.B22.26.C27.C28.A29.B30.34.A35.B36.C37.D38.42.C43.C44.D45.B46.50.A51.A52.A53.D54.5&C59.A60.A61.B62.BD3.3A5.2B

4、••75C-C•7.oy-11B••194465.D66.C67.B6&A69.B70.C71.B72.D73.A74.A75.A76.D77.A78.'B79.C80.B81.C82.A83.B84.C85.A86.B87.A88.C89.C90.A91.B■■92.B93.D94.A95.D96.A97.c9&B99.A100.C101.B102.B103.D104.A105.-c106.•■A107.A108.•c109.Bno.D111.•A112.■C113.c114.A115.B116.C117.D11&B119

5、.C120.D121.c122.B123.A124.C125.D126.B127.D12&C129.A130.B131.D132.C133.A134.B135.A136.D137.A13&C139.A140.D141.A142.C143.C144.B145.D146.B147.C148.C149.B150.C151.B152.C153.A154.C155.D156.A157.B15&D159.C160.D161.C162.B163.B164.A165.B166.C167.D1.解:CTK2Cr2O7^Fe/K2Cr2O7X0

6、・005585x100055.85mol/mL（二）多选题1.ABCD2.ABD3.BC4.'CD5.AB6.AB7.BCDABC9.BCD10.ABC11.ABCD12.ABCD13.AB€D-14.knADL-L715.ar>cADV-16.ar>c/IDlu1r丄/.AC>V18.CD19.AB20.BCD21.AB22.BC23.AD24.ABCD25.ABC26.BD27.ABD2&CD29.CD30.ABCD31.ABCD32.AB33.ABD34.AD35.ABCD36.ABC37.BCD38.ABC39.A

7、B40.ABCD41.AB42.BC43.ACD44.ABC45.ABCD46.AB47.CD4&ABC49.ABCD50.ABCD51.ABCD52.BD三、计算题=0.1000mol/L=0.1000mol/LxILx—x294.2g/mol=4.903g62・解:0.1(ig/mLx10~355.85g/moi=1.8xlO'6mol/L=1.1xl05L/(mol・cm)Cfe•L1.8x10mol/Lx2cm3・解：4…一2500.320—px=人从25.000.360x2.4(xg/mL250x25.00=21.

8、3jig/mL4.解:绘制标准曲线：..-•••••从标准曲线上查岀，人二0・41时，尬5=0.097mg,则mcu_—_....0,097mgx10_3inn_门MewCu=xiuu%=l匸誓入x100%=0.02%Cum样0.5110g5.解：绘制工作曲线：从工作曲线可知，样品溶液申锌含量为0・025Rg/mL,则=0.5x10~60.025

9、xg/mLx50mLx106矶样2.5115g4.解:rnNa2C2O4x^xlOOO件KMg二M診肿X人也。40.3562x^^x1000竺mol/L丄X134.0x48・362

10、=0.004397mol/LcKMn04=yc

11、kmh04=yx0-004397mol/L二0.0008795mol/L7.解:解:LChciMnhb二°・01015mol/Lx17.03g/mol=0.1729mg/mL1.Oixg——x50mL^10-QgF(j，51X8/8F°*5r