分子中含有碳碳双键的是()A. 丙炔B. 溴化氢C. 丁烷D. 丙烯

7.13电池Pt|H2 (101.325kPa)|HCl(0.1mol·kg^(-1))|Hg2Cl22(s)|Hg,电动势E与温度T的关-|||-系为-|||-=0.0694+1.881times (10)^-37k-2.9times (10)^-3((T/k))^2 。-|||-(1)写出电极反应和电池反应;-|||-(2)计算25℃时该反应的 Delta G(G)_(m) Delta (S)_(m) Delta (H)_(m) 及电池恒温可逆放电时该反应过程的Q1.m;-|||-(3)若反应在电池外在同样温度下恒压进行,计算系统与环境交换的热。

下列化合物碱性最强的是BCNHD

【单选题】配制KMnO4标准溶液的正确方法是A. 采用直接配制法B. 采用标定法C. 是溶液呈碱性D. 配制后立即标定

羧基中存在的电子效应是A. p-π共轭B. π-π共轭C. p-p共轭D. σ-π共轭

对表面活性剂的HLB值表述正确的是( )A. 表面活性剂的亲油性越强，其HLB值越大B. 表面活性剂的亲水性越强，其HLB值越大C. 表面活性剂的HLB值反映在油相或水相中的溶解能力D. 表面活性剂的CMC越大其HLB值越小E. 离子型表面活性剂的HLB值具有加和性

CuSO4与水可生成 CuSO4H2O, CuSO4 3H2O, CuSO4 5H2O 三种水合物,则在一定温度下与水蒸气平衡的含水盐最多为:A. 3种B. 2 种C. 1 种D. 不可能有共存的含水盐

6.完成下列反应式(对于有两种产物的请标明主、次产物)-|||-(1) lt -CHO+N(H)_(2)- √-|||-(2) equiv CH+2C(H)_(2)O →-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(3) bigcirc + 对甲基苯磺酸-|||-苯,加热-|||-H-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(4) +N(H)_(2)OHarrow -|||-(5) =0 ./(HO)^- ._(2)O/(H)^+-|||-? ?-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-((C{H)_(3))}_(2)Cu(L)_(1) _(2)O-|||-(6)-|||-PhLi _(2)O-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C} bigcirc (1)PhMgBr-|||-bigcirc (2)(H)_(2)O-|||-(7)(Ph)^--|||-bigcirc (1)(C)_(2)(H)_(5)MgBr-|||-② _(2)O-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(H)_(3)-|||-(8) +-|||-_(10)-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C} 0-|||-+-|||-(9) CHO _(10)-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(10)C(H)_(3)CC(H)_(2)Br HOCH2CH2OH-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(11) +(H)_(2) ykparallel c-|||-(H)_(3)-|||-(H)_(3)-|||-=0 (H)_(4)-|||-(12)H3C (CH3)2CHOH-|||-_(3)C-|||-(13) /-|||-LiBH(sec-Bu)36.完成下列反应式(对于有两种产物的请标明主、次产物)-|||-(1) lt -CHO+N(H)_(2)- √-|||-(2) equiv CH+2C(H)_(2)O →-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(3) bigcirc + 对甲基苯磺酸-|||-苯,加热-|||-H-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(4) +N(H)_(2)OHarrow -|||-(5) =0 ./(HO)^- ._(2)O/(H)^+-|||-? ?-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-((C{H)_(3))}_(2)Cu(L)_(1) _(2)O-|||-(6)-|||-PhLi _(2)O-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C} bigcirc (1)PhMgBr-|||-bigcirc (2)(H)_(2)O-|||-(7)(Ph)^--|||-bigcirc (1)(C)_(2)(H)_(5)MgBr-|||-② _(2)O-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(H)_(3)-|||-(8) +-|||-_(10)-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C} 0-|||-+-|||-(9) CHO _(10)-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(10)C(H)_(3)CC(H)_(2)Br HOCH2CH2OH-|||-O-|||-(14)Ph Mg _({H)_(3)O}^+-|||-苯-|||-0-|||-(15) _+(Br)_(2)xrightarrow [加热]({H)_(2)O,HOAC}-|||-O-|||-(16)Ph-|||- Ph+(H)_(2)overline (C)-overline (P)(H)_(3)arrow -|||-(17) +HCHOxrightarrow ({HO)^-}-|||-(18) bigcirc (1)=0+C(H)_(3)C(O)_(3)Hdfrac (C{H)_(3)COOE}({40)^circ C}-|||-(11) +(H)_(2) ykparallel c-|||-(H)_(3)-|||-(H)_(3)-|||-=0 (H)_(4)-|||-(12)H3C (CH3)2CHOH-|||-_(3)C-|||-(13) /-|||-LiBH(sec-Bu)3

）指（）A. 物质的浓度为1mg/100ml，液层厚度为1cm时，在一定条件下的吸收度B. 物质的浓度为1mg/1000ml，液层厚度为1mm时，在一定条件下的吸收度C. 物质的浓度为1g/1000ml，液层厚度为1cm时，在一定条件下的吸收度D. 物质的浓度为1g/100ml，液层厚度为1cm时，在一定条件下的吸收度E. 物质的浓度为1mg/100ml，液层厚度为1mm时，在一定条件下的吸收度

入射光波长选择的原则是( )A. 吸收最大B. 干扰最小C. 吸收最大干扰最小D. 吸光系数最大