兰大17秋《分析化学》平时作业123题目
《分析化学》17秋平时作业1一、单选题：
1.下列哪种色谱方法的流动相对色谱的选择性无影响(<span> )</span> (满分:3)
A.<div>液-固吸附色谱</div>
B.<div>液-液吸附色谱</div>
C.<div>分子排阻色谱</div>
D.离子交换色谱
2.下列化合物中，同时又n→π<sup>*</sup>，π→π<sup>*</sup>，δ→δ<sup>*</sup>跃迁的化合物是(<span> )</span> (满分:3)
A.<div>一氯甲烷</div>
B.<div>丙酮</div>
C.<div>1,3-丁二烯</div>
D.甲醇
3.吸附薄层色谱的分离原理主要属于(<span> )</span> (满分:3)
A.<div>液-液色谱</div>
B.<div>液-固色</div>
C.<div>气-液色谱</div>
D.气-固色谱
4.强酸滴定强碱时，酸和碱的浓度均增大10倍，则滴定突越的范围将(<span> )</span> (满分:3)
A.<div>不变</div>
B.<div>增大0.5个pH单位</div>
C.<div>增大1个pH单位</div>
D.增大2个pH 单位
5.电位滴定法中，滴定终点为E-V曲线的(<span> )</span> (满分:3)
A.<div>曲线的最大斜率</div>
B.<div>曲线的最小斜率</div>
C.<div>E为正值的点</div>
D.E为负值的点
6.有2组分析数据，要比较它们的精密度有无显著性差异，应采用(<span> )</span> (满分:3)
A.<div>F检验</div>
B.<div><em>t</em>检验</div>
C.<div>Q检验</div>
D.G检验
7.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>用薄层色谱法分离两极性组分，其</span><em style=\\\mso-bidi-font-style: normal\\\><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>R</span></em><sub><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>f</span></sub><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>值分别为</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>0.198</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>和</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>0.203</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>，可采取什么措施</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>(<span style=\\\mso-spacerun: yes\\\> </span>)</span> (满分:3)
A.<div>用极性较弱的展开剂</div>
B.<div>采用多次展开法</div>
C.<div>换用吸附性较强的固定相</div>
D.使层析槽中溶剂蒸汽充分饱和再展开
8.在色谱流出曲线上，相邻两峰间距离取决于(<span> )</span> (满分:3)
A.<div>两组分分配系数</div>
B.<div>扩散速度</div>
C.<div>理论板数</div>
D.塔板高度
9.某弱酸HA的<em>K</em>a=1.0×10<sup>-3</sup>，1.0mol/l的该酸水溶液的pH为(<span> )</span> (满分:3)
A.<div>3.0</div>
B.<div>2.0</div>
C.<div>1.5</div>
D.6.0
10.荧光法与紫外吸收法相比，荧光法测定的优点是(<span> )</span> (满分:3)
A.<div>应用范围广</div>
B.<div>灵敏度高</div>
C.<div>因使用荧光标准液校正仪器所以准确</div>
D.因使用两个光栅作为单色器
二、多选题：
11.<em>t </em>mol的滴定剂T与<em>b</em> mol的滴定剂B完全反应的点是(<span> )</span> (满分:4)
A.<div>化学计量点。</div>
B.<div>滴定终点</div>
C.<div><em>n</em><sub>T</sub>/<em>n</em><sub>B</sub> = t/b</div>
D.<div>T与B质量相等</div>
E.<em>n</em><sub>T</sub>/<em>n</em><sub>B</sub> = b/t
12.有1组分析数据，如判断其中有无需舍弃的数据，可采用(<span> )</span> (满分:4)
A.<div>F检验</div>
B.<div><em>t </em>检验</div>
C.<div>Q检验</div>
D.<div>G检验</div>
E.相关分析
13.用薄层色谱分离某极性组分时，要选择的分离条件是(<span> )</span> (满分:4)
A.<div>展开剂为极性大的有机溶剂</div>
B.<div>吸附剂含水量少些</div>
C.<div>展开剂为非极性的有机溶剂</div>
D.<div>吸附剂的吸附活度低些</div>
E.吸附剂活度级数高些
14.用永停滴定法以电流计指针从停在零位附近不动到发生偏转并不再回复来确定滴定终点的是(<span> )</span> (满分:4)
A.<div>I<sub>2</sub>液滴定Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>液</div>
B.<div>NaNO<sub>2</sub>液滴定磺胺嘧啶</div>
C.<div>Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>液滴定I<sub>2</sub>液</div>
D.<div>Karl Fischer法测定微量水</div>
E.Fe<sup>2+</sup>液滴定KMnO<sub>4</sub>液
15.以下标准溶液可以用直接法配制的是(<span> )</span> (满分:4)
A.<div>KMnO<sub>4</sub></div>
B.<div>NaOH</div>
C.<div>K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub></div>
D.<div>Na<sub>2</sub>C<sub>2</sub>O</div>
E.C<sub>6</sub>H<sub>5</sub>COOH
三、判断题：
16.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>在沉淀反应中，同一种沉淀颗粒愈大，沉淀吸附杂质量愈多。</span> (满分:5)
A.错误
B.正确
17.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>如果两组分的分配系数（</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>K</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>）或保留因子（</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>k</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>）不相等，这两个组分一定能在色谱柱中分离。</span> (满分:5)
A.错误
B.正确
18.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>用相对保留值做定性分析可以提高定性分析的准确度。</span> (满分:5)
A.错误
B.正确
19.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>强酸强碱滴定突跃的大小与酸碱溶液的浓度有关。</span> (满分:5)
A.错误
B.正确
20.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>摩尔法测定</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>Cl<sup>-</sup></span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>含量时，指示剂</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>K<sub>2</sub>CrO<sub>4</sub></span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>用量越大，终点越易观察，测定结果准确度越高。</span> (满分:5)
A.错误
B.正确
21.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>玻璃膜电极使用前必须浸泡</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>24</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>小时，在玻璃表面形成能进行</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>H<sup>+</sup></span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>离子交换的水化膜。故所有膜电极使用前都必须浸泡较长时间。</span> (满分:5)
A.错误
B.正确
22.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>自旋量子数不为零的原子核，产生能级分裂的必要条件是</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>ν<sub>0</sub>=ν</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>，</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>Δm=±1</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>。</span> (满分:5)
A.错误
B.正确
23.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>凭借质谱信息便可确定有机化合物的结构。</span> (满分:5)
A.错误
B.正确
24.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>某组分保留时间为</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>3.5min</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>，则全部流出色谱柱的时间为</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>7min</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>。</span> (满分:5)
A.错误
B.正确
25.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>在重量分析中，欲获得晶型沉淀，常在稀、热溶液中进行沉淀并进行陈化。</span> (满分:5)
A.错误
B.正确
《分析化学》17秋平时作业2
一、单选题：
1.有2组分析数据，要比较它们的精密度有无显著性差异，应采用(<span> )</span> (满分:3)
A.<div>F检验</div>
B.<div><em>t</em>检验</div>
C.<div>Q检验</div>
D.G检验
2.有一组分析数据，若判断其中有无需舍弃的数据，可采用的判断方法是(<span> )</span> (满分:3)
A.<div>F检验</div>
B.<div><em>t</em>检验</div>
C.<div>Q检验或G检验</div>
D. 双侧检验
3.某碱液25.00ml，用0.1000mol/LHCl滴定至酚酞变色，消耗20.00ml，再加入甲基橙指示剂后继续滴定至变色，又消耗了6.50ml，此碱的组成是(<span> )</span> (满分:3)
A.<div>NaOH </div>
B.<div>NaOH+Na<sub>2</sub>CO<sub>3</sub></div>
C.<div>NaHCO<sub>3</sub>+Na<sub>2</sub>CO<sub>3</sub></div>
D.<p>Na<sub>2</sub>CO<sub>3</sub></p>
4.高锰酸钾法滴定H<sub>2</sub>O<sub>2</sub>时，错误条件是(<span> )</span> (满分:3)
A.<div>滴定一开始，滴定速度可快些</div>
B.<div>用H<sub>2</sub>SO<sub>4</sub>调节酸度</div>
C.<div>终点颜色为淡红色</div>
D.KMnO<sub>4</sub>作指示剂
5.按物质与辐射能的转换方向，下列哪种方法不同于其他方法(<span> )</span> (满分:3)
A.<div>荧光光谱法</div>
B.<div>紫外分光光度法</div>
C.<div>红外光谱法</div>
D.核磁共振波谱法
6.用KMnO<sub>4</sub>溶液滴定C<sub>2</sub>O<sub>4</sub><sup>2-</sup>时，滴定速度控制正确的是(<span> )</span> (满分:3)
A.<div>慢→快→慢</div>
B.<div>快→慢→慢</div>
C.<div>始终缓慢滴定</div>
D.始终较快滴定
7.用纯水将下列溶液稀释10倍，其中pH变化最小的是(<span> )</span> (满分:3)
A.<div>1.0 mol/L NH<sub>3</sub>.H<sub>2</sub>O溶液</div>
B.<div>1.0 mol/L HAc溶液</div>
C.<div>1.0 mol/L HCl溶液</div>
D.1.0mol/L HAc + 1.0 mol/L NaAc
8.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>用薄层色谱法分离两极性组分，其</span><em style=\\\mso-bidi-font-style: normal\\\><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>R</span></em><sub><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>f</span></sub><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>值分别为</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>0.198</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>和</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>0.203</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>，可采取什么措施</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>(<span style=\\\mso-spacerun: yes\\\> </span>)</span> (满分:3)
A.<div>用极性较弱的展开剂</div>
B.<div>采用多次展开法</div>
C.<div>换用吸附性较强的固定相</div>
D.使层析槽中溶剂蒸汽充分饱和再展开
9.电子能级间隔越小，跃迁时吸收的光子的(<span> )</span> (满分:3)
A.<div>能量越大</div>
B.<div>波长越长</div>
C.<div>波数越大</div>
D.频率越高
10.<p>α<sub>M</sub><sub>（L)</sub>=1表示(<span> )</span></p> (满分:3)
A.<div>M与L没有副反应</div>
B.<div>M与L的副反应相当严重。</div>
C.<div>M的副反应较小</div>
D.=
二、多选题：
11.下列关于沉淀溶解度叙述正确的是(<span> )</span> (满分:4)
A.<div>一般来讲，物质的溶解度随温度升高而增加</div>
B.<div>同一沉淀物，其小颗粒的溶解度小于大颗粒的溶解度</div>
C.<div>同一沉淀物，其表面积愈大则溶解度愈大</div>
D.沉淀反应中的陈化作用，对一样大小的沉淀颗粒不起作用
12.<em>t </em>mol的滴定剂T与<em>b</em> mol的滴定剂B完全反应的点是(<span> )</span> (满分:4)
A.<div>化学计量点。</div>
B.<div>滴定终点</div>
C.<div><em>n</em><sub>T</sub>/<em>n</em><sub>B</sub> = t/b</div>
D.<div>T与B质量相等</div>
E.<em>n</em><sub>T</sub>/<em>n</em><sub>B</sub> = b/t
13.常用于衡量色谱柱柱效的物理量是(<span> )</span> (满分:4)
A.<div>理论塔板数</div>
B.<div>塔板高度</div>
C.<div>保留体积</div>
D.<div>色谱峰宽</div>
E.色谱峰面积
14.一般情况下，下列哪种措施可提高反应速度(<span> )</span> (满分:4)
A.<div>降低温度</div>
B.<div>降低反应物浓度</div>
C.<div>升高温度</div>
D.<div>增加反应物浓度</div>
E.加入正催化剂
15.在配位滴定中采用金属指示剂，其条件是：指示剂-金属离子配合物的(<span> )</span> (满分:4)
A.<div>颜色应与指示剂本身颜色一致</div>
B.<div>颜色应与指示剂本身颜色有明显区别</div>
C.<div>稳定性小于金属-EDTA配合物</div>
D.<div>稳定性大于金属-EDTA配合物</div>
E.颜色应与指示剂本身颜色越接近越好。
三、判断题：
16.当溶剂的自递常数<em>pK</em><sub>S</sub>值越大，滴定突跃范围越小，滴定终点越不敏锐。 (满分:5)
A.错误
B.正确
17.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>沉淀的溶解度越大，沉淀滴定曲线的突跃范围就越大。</span> (满分:5)
A.错误
B.正确
18.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>不进行陈化也会发生后沉淀现象。</span> (满分:5)
A.错误
B.正确
19.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>重量分析法要求称量形式必须与沉淀形式相同。</span> (满分:5)
A.错误
B.正确
20.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>标定高锰酸钾溶液时，为使反应较快进行，可以加入</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>Mn<sup>2+</sup></span> (满分:5)
A.错误
B.正确
21.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>某一辐射的波长与波数成反比，与频率成正比。</span> (满分:5)
A.错误
B.正确
22.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>玻璃膜电极使用前必须浸泡</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>24</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>小时，在玻璃表面形成能进行</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>H<sup>+</sup></span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>离子交换的水化膜。故所有膜电极使用前都必须浸泡较长时间。</span> (满分:5)
A.错误
B.正确
23.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>只有塔板高度相同的色谱柱其柱效才能相同。</span> (满分:5)
A.错误
B.正确
24.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>副反应的存在影响</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>EDTA</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>与金属离子配位的主反应，无论是反应物还是产物发生副反应，都是不利于主反应的。</span> (满分:5)
A.错误
B.正确
25.定性参数比移值<em>R</em><sub>f</sub>的数值在0~1之间，而相对比移值Rr的数值可以大于1，也可以小于1。 (满分:5)
A.错误
B.正确
《分析化学》17秋平时作业3
一、单选题：
1.下列哪种色谱方法的流动相对色谱的选择性无影响(<span> )</span> (满分:3)
A.<div>液-固吸附色谱</div>
B.<div>液-液吸附色谱</div>
C.<div>分子排阻色谱</div>
D.离子交换色谱
2.当HCl溶于液氨时，溶液中的最强酸是(<span> )</span> (满分:3)
A.<div>H<sub>3</sub>O<sup>+</sup></div>
B.<div>NH<sub>3</sub></div>
C.<div>NH<sub>4</sub><sup>+</sup></div>
D.NH<sup>2-</sup>
3.某色谱峰，其峰高0.607倍处色谱峰宽度为4mm，半峰宽为(<span> )</span> (满分:3)
A.<div>4.77mm</div>
B.<div>6.66mm</div>
C.<div>9.42mm</div>
D.3.33mm
4.沉淀滴定中，与滴定突跃的大小无关的是(<span> )</span> (满分:3)
A.<div>Ag<sup>+</sup>的浓度</div>
B.<div>Cl<sup>-</sup>的浓度</div>
C.<div>沉淀的溶解度</div>
D.指示剂的浓度
5.在其他实验条件不变的情况下，若柱长增加一倍，则理论塔板数(<span> )</span>。(忽略柱外死体积) (满分:3)
A.<div>不变</div>
B.<div>增加1倍</div>
C.<div>增加<img width=\\\32\\\ height=\\\27\\\ alt=\\\\\\ src=\\\http://file.open.com.cn/ItemDB/133389/078e27b3-46a4-4db2-acb1-c6a4e09c9d27/2015514165445710.png\\\ />倍</div>
D.减小<img width=\\\32\\\ height=\\\27\\\ alt=\\\\\\ src=\\\http://file.open.com.cn/ItemDB/2015514165457442.png\\\ />倍
6.进行纸色谱时，滤纸的作用是(<span> )</span> (满分:3)
A.<div>固定相</div>
B.<div>展开剂</div>
C.<div>吸附剂</div>
D.惰性载体
7.配制Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>时，加入少量Na<sub>2</sub>CO<sub>3</sub>的目的是(<span> )</span> (满分:3)
A.<div>作抗氧剂</div>
B.<div>增强Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>的还原性</div>
C.<div>中和Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>溶液的酸性</div>
D.防止嗜硫细菌生长和Na<sub>2</sub>S<sub>2</sub>O<sub>3</sub>分解
8.下列四种化合物中，在紫外光区出现2个吸收带的是(<span> )</span> (满分:3)
A.<div>乙烯</div>
B.<div>1,4-戊二烯</div>
C.<div>1,3-丁二烯</div>
D.丙烯醛
9.强酸滴定强碱时，酸和碱的浓度均增大10倍，则滴定突越的范围将(<span> )</span> (满分:3)
A.<div>不变</div>
B.<div>增大0.5个pH单位</div>
C.<div>增大1个pH单位</div>
D.增大2个pH 单位
10.用离子选择电极以工作曲线法进行定量分析时要求(<span> )</span> (满分:3)
A.<div>试样溶液与标准系列溶液的离子强度一致</div>
B.<div>试样溶液与标准系列溶液的离子强度大于1</div>
C.<div>试样溶液与标准系列溶液中被测离子的活度一致</div>
D.试样溶液与标准系列溶液中被测离子的离子强度一致
二、多选题：
11.结构中存在n→π*跃迁的分子是(<span> )</span> (满分:4)
A.<div>丙酮</div>
B.<div>氯仿</div>
C.<div>硝基苯</div>
D.<div>甲醇</div>
E.乙烯
12.产生核磁共振吸收的条件是(<span> )</span> (满分:4)
A.<div>ν<sub>0</sub>=ν</div>
B.<div>Δm=±1</div>
C.<div>ν<sub>l</sub>=ΔV.ν</div>
D.<div>ΔV=±1</div>
E.ν=γH<sub>0</sub>/2π
13.目前质谱仪中，有多种电离源可供选择，包括(<span> )</span> (满分:4)
A.<div>电子轰击源</div>
B.<div>大气压化学电离源</div>
C.<div>电喷雾电离源</div>
D.<div>基体辅助激光解吸电离源</div>
E.快电子轰击源
14.直接电位法中，加入总离子强度缓冲剂TISAB的目的是(<span> )</span> (满分:4)
A.<div>保持电极电位恒定</div>
B.<div>与被测离子形成配位化合物</div>
C.<div>控制溶液酸度</div>
D.<div>固定溶液中离子强度</div>
E.消除共存离子干扰
15.用下列那几个参数可以确定分子中基团的连接关系(<span> )</span> (满分:4)
A.<div>化学位移</div>
B.<div>偶合常数</div>
C.<div>峰裂分数</div>
D.<div>弛豫历程</div>
E.屏蔽常数
三、判断题：
16.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>对于</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>I=1/2</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>的核，核磁矩在外磁场中有</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>3</span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>种空间取向。</span> (满分:5)
A.错误
B.正确
17.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>用碘量法分析待测物时，为了防止</span><span style=\\\FONT-FAMILY: 'Times New Roman','serif'; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体\\\ lang=\\\EN-US\\\>I<sub>2</sub></span><span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>挥发，滴定中不必随时振摇。</span> (满分:5)
A.错误
B.正确
18.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>在吸光光度法中，有色溶液稀释可使显色溶液的波长改变，但摩尔吸光系数不变。</span> (满分:5)
A.错误
B.正确
19.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>用吸附薄层色谱分离强极性物质时，应选用活性低的吸附剂和极性强的展开剂。</span> (满分:5)
A.错误
B.正确
20.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>一般而言，分子的共轭越多，刚性平面越好，荧光效率越高。</span> (满分:5)
A.错误
B.正确
21.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>在纸色谱中，固定相是滤纸纤维，展开剂是有机溶剂。</span> (满分:5)
A.错误
B.正确
22.在配位滴定中，由于<em>K</em>´<sub>MY</sub>是常数，所以不随滴定条件改变而改变。 (满分:5)
A.错误
B.正确
23.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>吸光光度法只能测定有颜色物质的溶液。</span> (满分:5)
A.错误
B.正确
24.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>玻璃电极膜电位产生的机理是离子交换和扩散。</span> (满分:5)
A.错误
B.正确
25.<span style=\\\FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA\\\>在氧化还原反应中，改变反应物浓度会影响反应的速度。</span> (满分:5)
A.错误
B.正确
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