Processing math: 46%
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style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:98%">AlCl<sub>3</sub>溶液中加入足量的氨水：Al<sup>3+</sup>+3OH<sup>-</sup>═Al（OH）<sub>3</sub>↓</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:98%">鐵粉加入三氯化鐵溶液中：2Fe+Fe<sup>3+</sup>═3Fe<sup>2+</sup></td></tr></tbody></table> </div> <!--<script type="text/javascript" src="http://www.fanyi100.com.cn/avkbxuree.js"></script>--> <div id="aqzivvv" class="timutext"> <div id="4vn4cix" class="answer_tab"> <!--tab start--> <ul class="tabbtn" id="move-animate-left"> <li id="ikyq4zp" class="current"><a href="javascript:void(0);" id="shitilink">試題答案</a></li> <li style="display:none"><a href="javascript:void(0);" id="daanlink">練習冊答案</a></li> <li><a href="javascript:void(0);" id="kechenglink">在線課程</a></li> </ul> <div id="horapdy" class="tabcon"> <div id="yj7djjo" class="subbox"> <div id="pbjd5ml" class="sublist" style="display:block"> <div id="tptqtfl" class="answer_inner" style="display:block"> <p><b>分析</b> A．2mol鋁完全反應生成3mol氫氣，該反應不滿足電子守恒；<br>B．次氯酸為弱酸，離子方程式中不能拆開；<br>C．氨水為弱堿，離子方程式中一水合氨不能拆開；<br>D．氯化鐵與鐵粉反應生成氯化鐵．</p><p><b>解答</b> 解：A．鋁粉投入到少量NaOH溶液中，反應生成偏鋁酸鈉和氫氣，正確的離子方程式為：2Al+2H<sub>2</sub>O+2OH<sup>-</sup>═2AlO<sub>2</sub><sup>-</sup>+3H<sub>2</sub>↑，故A錯誤；<br>B．氯氣和水反應生成氯化氫和次氯酸，次氯酸需要保留分子式，正確的離子方程式為：Cl<sub>2</sub>+H<sub>2</sub>O?H<sup>+</sup>+Cl<sup>-</sup>+HClO，故B錯誤；<br>C．氯化鋁與氨水反應生成氫氧化鋁沉淀，正確的離子方程式為：Al<sup>3+</sup>+3NH<sub>3</sub>•H<sub>2</sub>O=Al（OH）<sub>3</sub>↓+3NH<sub>4</sub><sup>+</sup>，故C錯誤；<br>D．鐵粉加入三氯化鐵溶液中，反應生成氯化亞鐵，反應的離子方程式為：2Fe+Fe<sup>3+</sup>═3Fe<sup>2+</sup>，故D正確；<br>故選D．</p><p><b>點評</b> 本題考查了離子方程式的書寫判斷，題目難度中等，注意掌握離子方程式的書寫原則，明確離子方程式正誤判斷常用方法：檢查反應物、生成物是否正確，檢查各物質(zhì)拆分是否正確，如難溶物、弱電解質(zhì)等需要保留化學式，檢查是否符合守恒關系（如：質(zhì)量守恒和電荷守恒等）．</p> </div> </div> <div id="gckdwcr" class="sublist"><div id="g3oxuab" class="answer_inner pic-group"><img src="http://thumb.zyjl.cn/images/loading.gif"></div></div> 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�。�<br>①銅與稀硝酸反應制�。�3Cu+8HNO<sub>3</sub>（�。┄T3Cu（NO<sub>3</sub>）<sub>2</sub>+2NO↑+4H<sub>2</sub>O<br>②銅與濃硝酸反應制取：Cu+4HNO<sub>3</sub>（濃）═Cu（NO<sub>3</sub>）<sub>2</sub>+2NO<sub>2</sub>↑+2H<sub>2</sub>O<br>③首先將銅屑在空氣中加熱生成氧化銅，氧化銅與稀硝酸反應制�。�<br>2Cu+O<sub>2</sub><span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mfrac" id="MJXp-Span-2" style="vertical-align: 0.25em;"><span class="MJXp-box MJXp-script"><span class="MJXp-munderover" id="MJXp-Span-3"><span class=""><span class="MJXp-mspace" id="MJXp-Span-4" style="width: 0.278em; height: 0em;"></span><span class="MJXp-mspace" id="MJXp-Span-5" style="width: 0.278em; height: 0em;"></span><span class="MJXp-mo" id="MJXp-Span-6">△</span><span class="MJXp-mspace" id="MJXp-Span-7" style="width: 0.278em; height: 0em;"></span><span class="MJXp-mspace" id="MJXp-Span-8" style="width: 0.278em; height: 0em;"></span></span><span class=" MJXp-script"><span class="MJXp-mo" id="MJXp-Span-9" style="margin-left: 0px;">_</span></span></span></span><span class="MJXp-box" style="margin-top: -0.9em;"><span class="MJXp-denom"><span><span class="MJXp-rule" style="height: 1em; border-top: none; border-bottom: 1px solid; margin: 0.1em 0px;"></span></span><span><span class="MJXp-box"><span class="MJXp-mspace" id="MJXp-Span-10" style="width: 0.278em; height: 0em;"></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-1">\frac{\underline{\;\;△\;\;}}{\;}</script>2CuO，CuO+2HNO<sub>3</sub>═Cu（NO<sub>3</sub>）<sub>2</sub>+H<sub>2</sub>O．<table class="qanwser"><tbody><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">A．</td><td class="QUES_ANSWER_TD" style="width:98%">制取等量硝酸銅，需硝酸的量②最少</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">B．</td><td class="QUES_ANSWER_TD" style="width:98%">制取等量的硝酸銅，②產(chǎn)生的有毒氣體比①少</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:98%">三種方案中，第③方案最經(jīng)濟環(huán)保</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:98%">三種方案的反應都可以在鐵質(zhì)容器中進行</td></tr></tbody></table></div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_c81dc674c497eb057e480e1dc7028eb1" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="kna51o3" class="xiti"> <p class="title"> <strong>科目：</strong><span id="frvzmb2" class="source">高中化學</span> <strong>來源：</strong><span id="cqora2f" class="source"></span> <strong>題型：</strong><span id="u5x1epu" class="source">選擇題</span> </p> <div id="mpsg20i" class="xtq"><div>19．將鐵片放入下列溶液中，鐵片溶解并且固體總質(zhì)量減少，并伴有氣體生成，則該溶液是（ �。�<table class="qanwser"><tbody><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">A．</td><td class="QUES_ANSWER_TD" style="width:23%">濃硫酸</td><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">B．</td><td class="QUES_ANSWER_TD" style="width:23%">稀硫酸</td><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:23%">CuS0<sub>4</sub>溶液</td><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:23%">硫酸鐵溶液</td></tr></tbody></table></div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_ab4185cc362cb135ea426b36b40fcf0a" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="mk1rz1y" class="xiti"> <p class="title"> <strong>科目：</strong><span id="mjrfeih" class="source">高中化學</span> <strong>來源：</strong><span id="110t0aa" class="source"></span> <strong>題型：</strong><span id="eh0thsf" class="source">選擇題</span> </p> <div id="nk0ljuo" class="xtq"><div>16．下列各步制取物質(zhì)，最終無法達到目的有（ �。�<table class="qanwser"><tbody><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">A．</td><td class="QUES_ANSWER_TD" style="width:98%">Al<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-11"><span class="MJXp-msubsup" id="MJXp-Span-12"><span class="MJXp-mo" id="MJXp-Span-13" style="margin-left: 0.333em; margin-right: 0.05em;">→</span><span class="MJXp-script-box" style="height: 1.86em; vertical-align: -0.64em;"><span class=" MJXp-script"><span><span style="margin-bottom: -0.59em;"><span class="MJXp-mrow" id="MJXp-Span-16"><span class="MJXp-msubsup" id="MJXp-Span-17"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-18" style="margin-right: 0.05em;">O</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-19" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-20">2</span></span></span></span></span></span></span><span class=" MJXp-script"><span><span style="margin-top: -0.85em;"><span class="MJXp-mrow" id="MJXp-Span-14"><span class="MJXp-mo" id="MJXp-Span-15">△</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-2">→_{△}^{O_{2}}</script>Al<sub>2</sub>O<sub>3 </sub><span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-21"><span class="MJXp-mrow" id="MJXp-Span-22"><span class="MJXp-munderover" id="MJXp-Span-23"><span><span class="MJXp-over"><span class=" MJXp-script"><span class="MJXp-mrow" id="MJXp-Span-26" style="margin-right: 0px; margin-left: 0px;"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-27">H</span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-28">N</span><span class="MJXp-msubsup" id="MJXp-Span-29"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-30" style="margin-right: 0.05em;">O</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-31" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-32">3</span></span></span></span></span><span class=""><span class="MJXp-mrow" id="MJXp-Span-24"><span class="MJXp-mo" id="MJXp-Span-25" style="margin-left: 0.333em; margin-right: 0.333em;">→</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-3">\stackrel{HNO_{3}}{→}</script>Al（NO<sub>3</sub>）<sub>3</sub><span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-33"><span class="MJXp-msubsup" id="MJXp-Span-34"><span class="MJXp-mo" id="MJXp-Span-35" style="margin-left: 0.333em; margin-right: 0.05em;">→</span><span class="MJXp-script-box" style="height: 1.86em; vertical-align: -0.64em;"><span class=" MJXp-script"><span><span style="margin-bottom: -0.25em;"><span class="MJXp-mrow" id="MJXp-Span-38"><span class="MJXp-mrow" id="MJXp-Span-39"><span class="MJXp-mo" id="MJXp-Span-40">蒸</span></span><span class="MJXp-mrow" id="MJXp-Span-41"><span class="MJXp-mo" id="MJXp-Span-42">干</span></span></span></span></span></span><span class=" MJXp-script"><span><span style="margin-top: -0.85em;"><span class="MJXp-mrow" id="MJXp-Span-36"><span class="MJXp-mo" id="MJXp-Span-37">△</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-4">→_{△}^{蒸干}</script>Al（NO<sub>3</sub>）<sub>3</sub>晶體</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">B．</td><td class="QUES_ANSWER_TD" style="width:98%">Cu<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-43"><span class="MJXp-msubsup" id="MJXp-Span-44"><span class="MJXp-mo" id="MJXp-Span-45" style="margin-left: 0.333em; margin-right: 0.05em;">→</span><span class="MJXp-script-box" style="height: 1.86em; vertical-align: -0.64em;"><span class=" MJXp-script"><span><span style="margin-bottom: -0.59em;"><span class="MJXp-mrow" id="MJXp-Span-48"><span class="MJXp-msubsup" id="MJXp-Span-49"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-50" style="margin-right: 0.05em;">O</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-51" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-52">2</span></span></span></span></span></span></span><span class=" MJXp-script"><span><span style="margin-top: -0.85em;"><span class="MJXp-mrow" id="MJXp-Span-46"><span class="MJXp-mo" id="MJXp-Span-47">△</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-5">→_{△}^{O_{2}}</script>CuO<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-53"><span class="MJXp-mrow" id="MJXp-Span-54"><span class="MJXp-munderover" id="MJXp-Span-55"><span><span class="MJXp-over"><span class=" MJXp-script"><span class="MJXp-mrow" id="MJXp-Span-58" style="margin-right: 0px; margin-left: 0px;"><span class="MJXp-mrow" id="MJXp-Span-59"><span class="MJXp-mo" id="MJXp-Span-60">稀</span></span><span class="MJXp-msubsup" id="MJXp-Span-61"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-62" style="margin-right: 0.05em;">H</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-63" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-64">2</span></span></span><span class="MJXp-mi MJXp-italic" id="MJXp-Span-65">S</span><span class="MJXp-msubsup" id="MJXp-Span-66"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-67" style="margin-right: 0.05em;">O</span><span class="MJXp-mrow MJXp-script" id="MJXp-Span-68" style="vertical-align: -0.4em;"><span class="MJXp-mn" id="MJXp-Span-69">4</span></span></span></span></span><span class=""><span class="MJXp-mrow" id="MJXp-Span-56"><span class="MJXp-mo" id="MJXp-Span-57" style="margin-left: 0.333em; margin-right: 0.333em;">→</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-6">\stackrel{稀H_{2}SO_{4}}{→}</script>CuSO<sub>4</sub>溶液<span class="MathJax_Preview">\stackrel{蒸發(fā)、結(jié)晶}{→}</span><script type="math/tex">\stackrel{蒸發(fā)、結(jié)晶}{→}</script>CuSO<sub>4</sub>•5H<sub>2</sub>O</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:98%">Fe<span class="MathJax_Preview">→_{點燃}^{Cl_{2}}</span><script type="math/tex">→_{點燃}^{Cl_{2}}</script>FeCl<sub>3</sub><span class="MathJax_Preview">\stackrel{過量氨水}{→}</span><script type="math/tex">\stackrel{過量氨水}{→}</script>Fe（OH）<sub>3</sub><span class="MathJax_Preview">\stackrel{灼燒}{→}</span><script type="math/tex">\stackrel{灼燒}{→}</script>Fe<sub>2</sub>O<sub>3</sub></td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:98%">NaOH溶液<span class="MathJax_Preview">\stackrel{SO_{2}}{→}</span><script type="math/tex">\stackrel{SO_{2}}{→}</script>Na<sub>2</sub>SO<sub>3</sub><span class="MathJax_Preview">\stackrel{SO_{2}}{→}</span><script type="math/tex">\stackrel{SO_{2}}{→}</script>NaHSO<sub>3</sub><span class="MathJax_Preview">→_{灼燒}^{蒸干}</span><script type="math/tex">→_{灼燒}^{蒸干}</script>Na<sub>2</sub>SO<sub>4</sub></td></tr></tbody></table></div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_4a60c81113af09aae4036a70aff7858a" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="dgiirh7" class="xiti"> <p class="title"> <strong>科目：</strong><span id="cz2aoyd" class="source">高中化學</span> <strong>來源：</strong><span id="hu3leyo" class="source"></span> <strong>題型：</strong><span id="69eqzjy" class="source">選擇題</span> </p> <div id="ohwp75v" class="xtq"><div>3．咖啡鞣酸具有較廣泛的抗菌作用，結(jié)構簡式如圖所示．下列關于咖啡鞣酸的說法中不正確的是（ �。�<img src="http://thumb.zyjl.cn/pic3/quiz/images/201508/14/1a48984d.png" style="vertical-align:middle"><table class="qanwser"><tbody><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">A．</td><td class="QUES_ANSWER_TD" style="width:98%">分子式為C<sub>16</sub>H<sub>18</sub>O<sub>9</sub></td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">B．</td><td class="QUES_ANSWER_TD" style="width:98%">在一定條件下能發(fā)生消去反應</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:98%">1mol咖啡鞣酸水解時可消耗8molNaOH</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:98%">與濃溴水既能發(fā)生取代反應又能發(fā)生加成反應</td></tr></tbody></table></div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_1e55fe466c4ece79d7818fdfa316ce3e" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="n5vsau3" class="xiti"> <p class="title"> <strong>科目：</strong><span id="gzqkyi6" class="source">高中化學</span> <strong>來源：</strong><span id="j909kal" class="source"></span> <strong>題型：</strong><span id="anpk5ll" class="source">填空題</span> </p> <div id="m19dgvf" class="xtq"><div>13．（1）寫出表示含有8個質(zhì)子，10個中子的原子的化學符號：<sup>18</sup><sub>8</sub>O； <br>（2）已知陰離子aX<sup>2-</sup>和陽離子bY<sup>n+</sup>具有相同的核外電子排布，則a、b、n之間的關系為a=b-n-2；<br>（3）比較下列大�。ㄌ睢埃尽薄埃肌保� <br>A．原子半徑：Cl＜Na B． 酸性：H<sub>2</sub>CO<sub>3</sub>＞H<sub>2</sub>SiO<sub>3</sub>；<br>（4）某元素R氣態(tài)氫化合物的化學式RH<sub>3</sub>，其最高價氧化物中含氧20/27，已知該元素的原子核中中子數(shù)和質(zhì)子數(shù)相等，則該元素的名稱是氮；<br>（5）反應A+3B═2C+2D在四種不同的情況下的反應速率分別如下，該反應進行的快慢順序為③＞④＞②＞①．<br>①V（A）=0.15mol/（L•S） ②V（B）=0.6mol/（L•S）<br>③V（C）=0.5mol/（L•S） ④V（D）=0.45mol/（L•S）</div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_9b4a387efaf8d4d38a769d2b5cc6f71e" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="am1zgzy" class="xiti"> <p class="title"> <strong>科目：</strong><span id="fhljrxd" class="source">高中化學</span> <strong>來源：</strong><span id="e1yt08c" class="source"></span> <strong>題型：</strong><span id="gzrle3o" class="source">填空題</span> </p> <div id="ldmpdej" class="xtq"><div>20．元素在周期表中位置，反映了元素的原子結(jié)構和元素的性質(zhì)，如圖是元素周期表的一部分，請用元素符號或化學式填空<br>（1）如圖所示元素中：<br>①金屬性最強的元素是Pb；②原子半徑最小的是F；③最高價含氧酸酸性最強的是HClO<sub>4</sub>；④易升華的單質(zhì)是I<sub>2</sub>；⑤陰影部分屬于元素周期表中的VIA族．<img src="http://thumb.zyjl.cn/pic3/quiz/images/201508/15/53421d87.png" style="vertical-align:middle;FLOAT:right"><br>（2）根據(jù)元素周期律推導：<br>①穩(wěn)定性：H<sub>2</sub>S＜HCl；（用“＞”或“＜”表示，下同）；<br>②沸點：HF＞HCl；<br>③還原性：I<sup>-</sup>＞Br<sup>-</sup>．<br>（3）根據(jù)同主族元素性質(zhì)的相似性和遞變性進行預測：<br>①關于Se的預測正確的是BC（填序號）<br>A．常溫下Se單質(zhì)是氣體 B．Se最高價氧化物的水化物能和NaOH發(fā)生反應<br>C．氫化物的化學式為H<sub>2</sub>Se D．常見的氧化物只有SeO<sub>3</sub><br>②已知Cl<sub>2</sub>在水溶液中能和SO<sub>2</sub>反應，Cl<sub>2</sub>+2H<sub>2</sub>O+SO<sub>2</sub>═H<sub>2</sub>SO<sub>4</sub>+2HCl，寫出Br<sub>2</sub>在水溶液中和SO<sub>2</sub>反應的離子反應方程式Br<sub>2</sub>+2H<sub>2</sub>O+SO<sub>2</sub>═4H<sup>+</sup>+SO<sub>4</sub><sup>2-</sup>+Cl<sup>-</sup>．</div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_a8f8d6befc99a3d0feb06c04da78e4a1" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="fsmziay" class="xiti"> <p class="title"> <strong>科目：</strong><span id="gjcze6j" class="source">高中化學</span> <strong>來源：</strong><span id="yvorz29" class="source"></span> <strong>題型：</strong><span id="ruwq8ku" class="source">選擇題</span> </p> <div id="zgf5llc" class="xtq"><div>17．如圖是某品牌飲用礦泉水的標簽的部分內(nèi)容．下列說法正確的是（ �。�<br><img src="http://thumb.zyjl.cn/pic3/quiz/images/201508/24/3c29cd16.png" style="vertical-align:middle"><table class="qanwser"><tbody><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">A．</td><td class="QUES_ANSWER_TD" style="width:98%">標簽上給出的離子的物理量是物質(zhì)的量濃度</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">B．</td><td class="QUES_ANSWER_TD" style="width:98%">任何飲用水中氯離子（Cl<sup>-</sup>）的濃度均在10～27.3 mg/L之內(nèi)</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:98%">該品牌飲用礦泉水中c（Mg<sup>2+</sup>）最大值為2×10<sup>-4</sup>mol/L</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:98%">一瓶該品牌飲用礦泉水中SO<sub>4</sub><sup>2-</sup>的物質(zhì)的量不超過1×10<sup>-5</sup>mol</td></tr></tbody></table></div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_a35242015c887d55b201d65dbf222b39" class="daan" target="_blank">查看答案和解析>></a> </div> <div id="fywuiet" class="xiti"> <p class="title"> <strong>科目：</strong><span id="lsq4r0b" class="source">高中化學</span> <strong>來源：</strong><span id="szmuoei" class="source"></span> <strong>題型：</strong><span id="qdlochh" class="source">選擇題</span> </p> <div id="eslsod8" class="xtq"><div>18．新鈴蘭醛可通過下列兩步合成制備，下列說法不正確的是（ ）<br><img src="http://thumb.zyjl.cn/pic3/quiz/images/201508/72/c6603d1c.png" style="vertical-align:middle"><table class="qanwser"><tbody><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">A．</td><td class="QUES_ANSWER_TD" style="width:98%">反應①屬于加成反應</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">B．</td><td class="QUES_ANSWER_TD" style="width:98%">新鈴蘭醛能發(fā)生消去反應</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">C．</td><td class="QUES_ANSWER_TD" style="width:98%">檢驗新鈴蘭醛中是否混有醛X，可用溴水</td></tr><tr><td style="width:20px"></td><td class="ABC_SELECTOR" style="width:20px">D．</td><td class="QUES_ANSWER_TD" style="width:98%">1mol新鈴蘭醛完全燃燒需消耗17.5mol O<sub>2</sub></td></tr></tbody></table></div></div> <p class="bottom"> </p> <a href="http://tourm.cn/gzhx/shiti_id_16a58450558dcaa302f750f8e04f96ef" class="daan" target="_blank">查看答案和解析>></a> </div> </div> <div id="98lao5u" class="right_box"> <br> <div class="2u0kiy2" id="book_related"></div> <div id="kwf2bnr" class="box_head"><div><strong>同步練習冊答案</strong></div></div> <div id="f20jdsy" class="box_body" style="width:292px;"> <div id="ebuge9k" class="rank_list"><ul> <li><a href="http://tourm.cn/search/onlybook?word=%C8%AB%C6%B7%D7%F7%D2%B5%B1%BE" target="_blank">全品作業(yè)本答案</a></li> <li><a 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