{"id":15053,"date":"2022-11-17T11:50:44","date_gmt":"2022-11-17T11:50:44","guid":{"rendered":"http:\/\/www.kaptest.com\/blog\/prep\/?p=15053"},"modified":"2022-11-23T21:08:07","modified_gmt":"2022-11-23T21:08:07","slug":"ap-chemistry-multiple-choice-practice-questions","status":"publish","type":"post","link":"https:\/\/wpapp.kaptest.com\/study\/ap-chemistry\/ap-chemistry-multiple-choice-practice-questions\/","title":{"rendered":"AP Chemistry: Multiple Choice Practice Questions"},"content":{"rendered":"<p>The multiple-choice section of the AP Chemistry test consists of 60 questions that you will have 90 minutes to answer. That&#8217;s an average of one and a half minutes per question. Refresh yourself on the <a title=\"AP Chemistry: Top 5 General Test Strategies\" href=\"http:\/\/www.kaptest.com\/blog\/prep\/ap-chemistry\/ap-chemistry-top-5-general-test-strategies\/\">general AP test strategies<\/a> and <a title=\"AP Chemistry: Multiple Choice Strategies\" href=\"http:\/\/www.kaptest.com\/blog\/prep\/ap-chemistry\/ap-chemistry-multiple-choice-strategies\/\">multiple-choice strategies<\/a>, then apply the concepts to the\u00a0following five AP Chemistry practice questions.<\/p>\n<p><div  style=' margin-top:30px; margin-bottom:4px;'  class='hr hr-custom hr-center hr-icon-no  0  avia-builder-el-0  el_before_av_sidebar  avia-builder-el-first '><span class='hr-inner  inner-border-av-border-none' style=' width:50px;' ><span class='hr-inner-style'><\/span><\/span><\/div><br \/>\n<div  class='avia-builder-widget-area clearfix  avia-builder-el-1  el_after_av_hr  el_before_av_promobox '><div id=\"custom_html-15\" class=\"widget_text widget clearfix widget_custom_html\"><div class=\"textwidget custom-html-widget\"><div><div class='op-interactive' id='63580a9839b66732a128e24a' data-title='AP Chemistry Quiz' data-url='https:\/\/kaplannorthamerica.outgrow.us\/63580a9839b66732a128e24a?vHeight=1' data-width='100%'><\/div><script src='\/\/dyv6f9ner1ir9.cloudfront.net\/assets\/js\/nloader.js'><\/script><script>initIframe('63580a9839b66732a128e24a');<\/script><\/div><\/div><\/div><\/div><\/p>\n<p>\t<div   class='av_promobox  avia-button-no   avia-builder-el-2  el_after_av_sidebar  el_before_av_toggle_container '>\t\t<div class='avia-promocontent'><p>\n<strong>AP Chemistry Free Practice Question #1<\/strong><\/p>\n<p class=\"p1\"><span class=\"s2\">Which of the following gases has the weakest attractive forces between particles?<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">A. CO<\/span><span class=\"s5\">2<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">B. He<\/span><\/p>\n<p class=\"p1\">C. NO<\/p>\n<p class=\"p1\"><span class=\"s2\">D. HCl<\/span><\/p>\n<p>\n<\/div><\/div><br \/>\n<div  class=\"togglecontainer   toggle_close_all  avia-builder-el-3  el_after_av_promobox  el_before_av_promobox \" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#toggle-id-1\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"toggle-id-1\">Answer 1<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"toggle-id-1\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p class=\"p1\"><span class=\"s1\">Correct Answer: B<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">The gas with the weakest attractive forces between particles will also have the lowest boiling point (He).<\/span><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><br \/>\n\t<div   class='av_promobox  avia-button-no   avia-builder-el-4  el_after_av_toggle_container  el_before_av_toggle_container '>\t\t<div class='avia-promocontent'><p>\n<strong>AP Chemistry Free Practice Question #2<\/strong><\/p>\n<p class=\"p1\"><span class=\"s2\">Which of the following <i>must <\/i>be true for a sample of supercritical uranium (<\/span><span class=\"s3\">235<\/span><span class=\"s2\">U)?<\/span><\/p>\n<p><span class=\"s2\">A. \u00a0The density exceeds that found at ambient temperatures and pressures. <\/span><span class=\"s4\"><br \/>\n<\/span><br \/>\n<span class=\"s2\">B. \u00a0There is less density than found at ambient temperatures and pressures. <\/span><span class=\"s4\"><br \/>\n<\/span><br \/>\n<span class=\"s2\">C. \u00a0The rate of production of neutrons exceeds their rate of consumption. <\/span><span class=\"s4\"><br \/>\n<\/span><br \/>\n<span class=\"s2\">D. \u00a0The sample is pure. <\/span><\/p>\n<\/div><\/div><br \/>\n<div  class=\"togglecontainer   toggle_close_all  avia-builder-el-5  el_after_av_promobox  el_before_av_promobox \" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#toggle-id-2\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"toggle-id-2\">Answer 2<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"toggle-id-2\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p><span class=\"s1\">Correct Answer: C<\/span><br \/>\n<span class=\"s1\">In nuclear chemistry, a sample of a radioactive substance is said to be critical, or have critical mass, when each fission process induces one other fission process to occur. If a radioactive substance is supercritical, each fission process starts more than one fission process. The radioactive sample need not be pure. Increasing the temperature has no effect on nuclear reaction rates. Although increasing the density of the fissile material (<\/span><span class=\"s2\">235<\/span><span class=\"s1\">U) could increase the efficiency of neutron capture, it is not required for the sample to be supercritical.<\/span><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><br \/>\n\t<div   class='av_promobox  avia-button-no   avia-builder-el-6  el_after_av_toggle_container  el_before_av_toggle_container '>\t\t<div class='avia-promocontent'><p>\n<strong>AP Chemistry Free Practice Question #3<\/strong><\/p>\n<p class=\"p1\"><span class=\"s2\">Which of the following reactions is most likely to have both a positive \u0394<i>H <\/i>and \u0394<i>S<\/i>?<\/span><\/p>\n<p><span class=\"s2\">A. \u00a0heat + NH<\/span><span class=\"s5\">4<\/span><span class=\"s2\">Cl (s) <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> NH<\/span><span class=\"s5\">3 <\/span><span class=\"s2\">(g) + HCl (g)\u00a0<\/span><br \/>\n<span class=\"s2\">B. \u00a02SO<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) + O<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g)\u00a0<\/span><span class=\"s6\">\u2192\u00a0<\/span><span class=\"s2\">2SO<\/span><span class=\"s5\">3 <\/span><span class=\"s2\">(g) + heat\u00a0<\/span><br \/>\n<span class=\"s2\">C. \u00a0heat + H<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) + CO<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g)\u00a0<\/span><span class=\"s6\">\u2192\u00a0<\/span><span class=\"s2\">H<\/span><span class=\"s5\">2<\/span><span class=\"s2\">O(g) + CO(g)\u00a0<\/span><br \/>\n<span class=\"s2\">D. \u00a02NO (g) <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> N<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) + O<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) + heat<\/span><\/p>\n<\/div><\/div><br \/>\n<div  class=\"togglecontainer   toggle_close_all  avia-builder-el-7  el_after_av_promobox  el_before_av_promobox \" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#toggle-id-3\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"toggle-id-3\">Answer 3<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"toggle-id-3\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p class=\"p1\"><span class=\"s1\">Correct Answer: A<\/span><\/p>\n<p class=\"p2\"><span class=\"s1\">Endothermic reactions have the heat on the left side and a positive \u0394<i>H<\/i>. Reactions with an increase in entropy also have a positive \u0394<i>S<\/i>. Because the reaction in choice (A) produces two moles of gas for each mole of solid, it would have a positive \u0394<i>S<\/i>.<\/span><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><br \/>\n\t<div   class='av_promobox  avia-button-no   avia-builder-el-8  el_after_av_toggle_container  el_before_av_toggle_container '>\t\t<div class='avia-promocontent'><p>\n<strong>AP Chemistry Free Practice Question #4<\/strong><\/p>\n<p class=\"p1\"><span class=\"s2\">2N<\/span><span class=\"s5\">2<\/span><span class=\"s2\">O<\/span><span class=\"s5\">5 <\/span><span class=\"s2\">(g) <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> 2N<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) + 5O<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g)<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">Dinitrogen pentoxide decomposes in a first- order reaction with a half-life of 7 minutes at 230\u00b0C according to the equation above.<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">If N<\/span><span class=\"s5\">2<\/span><span class=\"s2\">O<\/span><span class=\"s5\">5 <\/span><span class=\"s2\">is added to an evacuated flask to a pressure of 800 torr at 230\u00b0C, what is the total pressure in the flask after 14 minutes?<\/span><\/p>\n<p><span class=\"s2\">A. \u00a0200 torr <\/span><span class=\"s4\"><br \/>\n<\/span><br \/>\n<span class=\"s2\">B. \u00a0800 torr <\/span><span class=\"s4\"><br \/>\n<\/span><br \/>\n<span class=\"s2\">C. \u00a01,400 torr <\/span><span class=\"s4\"><br \/>\n<\/span><br \/>\n<span class=\"s2\">D. \u00a02,300 torr <\/span><\/p>\n<\/div><\/div><br \/>\n<div  class=\"togglecontainer   toggle_close_all  avia-builder-el-9  el_after_av_promobox  el_before_av_promobox \" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#toggle-id-4\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"toggle-id-4\">Answer 4<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"toggle-id-4\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p class=\"p1\"><span class=\"s1\">Correct Answer: D<\/span><\/p>\n<p class=\"p1\"><span class=\"s5\">Two half\u2212lives occur in 14 minutes, thus (1\/2)2 = 1\/4\u00a0<\/span><span class=\"s5\">of the starting material remains, or 200 torr. Also, 600 torr of N<\/span><span class=\"s10\">2<\/span><span class=\"s5\">O<\/span><span class=\"s10\">5 <\/span><span class=\"s5\">have decomposed. For every two moles of N<\/span><span class=\"s10\">2<\/span><span class=\"s5\">O<\/span><span class=\"s10\">5 <\/span><span class=\"s5\">decomposed, seven moles total of\u00a0<\/span><span class=\"s5\">N and O are produced or (600\/2) <\/span><span class=\"s11\">\u00a0<\/span><span class=\"s13\">\u00d7 <\/span><span class=\"s14\">7 <\/span><span class=\"s13\">= <\/span><span class=\"s14\">2,100 torr.\u00a0<\/span>Because the partial pressures are additive, the total pressure would be 2,100 + 200 = 2,300 torr.<\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><br \/>\n\t<div   class='av_promobox  avia-button-no   avia-builder-el-10  el_after_av_toggle_container  el_before_av_toggle_container '>\t\t<div class='avia-promocontent'><p>\n<strong>AP Chemistry Free Practice Question #5<\/strong><\/p>\n<p class=\"p1\"><span class=\"s2\">Given the following standard reduction potentials, which reaction would be expected to occur?<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">Cu<\/span><span class=\"s3\">+ <\/span><span class=\"s2\">+ e<\/span><span class=\"s3\">\u2212 <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> Cu (s) <i>E<\/i>\u00b0 = +0.52 V<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">2H<\/span><span class=\"s3\">+ <\/span><span class=\"s2\">+ 2e<\/span><span class=\"s3\">\u2212 <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> H<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) <i>E<\/i>\u00b0 = 0 V<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">Pb<\/span><span class=\"s3\">2+ <\/span><span class=\"s2\">+ 2e<\/span><span class=\"s3\">\u2212 <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> Pb (s) <i>E<\/i>\u00b0 = \u22120.13 V<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">Cr<\/span><span class=\"s3\">3+ <\/span><span class=\"s2\">+ e<\/span><span class=\"s3\">\u2212 <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> Cr<\/span><span class=\"s3\">2+ <\/span><span class=\"s2\"><i>E<\/i>\u00b0 = \u22120.41 V<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">A. 2Cu (s) + Pb<\/span><span class=\"s3\">2+ <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> 2Cu<\/span><span class=\"s3\">+ <\/span><span class=\"s2\">+ Pb (s)<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">B. Pb<\/span><span class=\"s3\">2+ <\/span><span class=\"s2\">+ H<\/span><span class=\"s5\">2 <\/span><span class=\"s2\">(g) <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> Pb (s) + 2H<\/span><span class=\"s3\">+<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">C. 2Cr<\/span><span class=\"s3\">2+ <\/span><span class=\"s2\">+ Pb<\/span><span class=\"s3\">2+ <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> Pb (s) + 2Cr<\/span><span class=\"s3\">3+<\/span><\/p>\n<p class=\"p1\"><span class=\"s2\">D. Pb (s) + 2Cr<\/span><span class=\"s3\">3+ <\/span><span class=\"s6\">\u2192<\/span><span class=\"s2\"> 2Cr<\/span><span class=\"s3\">2+ <\/span><span class=\"s2\">+ Pb<\/span><span class=\"s3\">2+<\/span><\/p>\n<p>\n<\/div><\/div><br \/>\n<div  class=\"togglecontainer   toggle_close_all  avia-builder-el-11  el_after_av_promobox  el_before_av_sidebar \" >\n<section class=\"av_toggle_section\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\"  >    <div role=\"tablist\" class=\"single_toggle\" data-tags=\"{All} \"  >        <p data-fake-id=\"#toggle-id-5\" class=\"toggler \"  itemprop=\"headline\"    role=\"tab\" tabindex=\"0\" aria-controls=\"toggle-id-5\">Answer 5<span class=\"toggle_icon\" >        <span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p>        <div id=\"toggle-id-5\" class=\"toggle_wrap \"  >            <div class=\"toggle_content invers-color \"  itemprop=\"text\"   ><p class=\"p1\"><span class=\"s1\">Correct Answer: C<\/span><\/p>\n<p class=\"p1\"><span class=\"s1\">To determine what reactions can be expected to occur, we need to look at both half-reactions for each reaction. Since some of the half-reactions occurring appear to be going in the opposite direction of our standard reduction reactions, we need to reverse the sign of the <i>E<\/i>\u00b0 of the reactions. Hence, a value of +0.52 V becomes \u22120.52 V, which indicates a reaction that will not spontaneously occur without added energy. The only reaction with a net <i>E<\/i>\u00b0 that is positive is choice (C): <i>E<\/i>\u00b0 = +0.41 + (\u22120.13) = +0.28 V. This reaction is thus highly likely occur with no other added energy or reagents.<\/span><\/p>\n            <\/div>        <\/div>    <\/div><\/section>\n<\/div><br \/>\n<div  class='avia-builder-widget-area clearfix  avia-builder-el-12  el_after_av_toggle_container  avia-builder-el-last '><div id=\"custom_html-109\" class=\"widget_text widget clearfix widget_custom_html\"><div class=\"textwidget custom-html-widget\"><\/div><\/div><div id=\"text-80\" class=\"widget clearfix widget_text\">\t\t\t<div class=\"textwidget\"><\/div>\n\t\t<\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The multiple-choice section of the AP Chemistry test consists of 60 questions that you will have 90 minutes to answer. That&#8217;s an average of one and a half minutes per question. Refresh yourself on the general AP test strategies and multiple-choice strategies, then apply the concepts to the\u00a0following five AP Chemistry practice questions.<\/p>\n","protected":false},"author":1,"featured_media":39780,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[528],"tags":[409],"_links":{"self":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts\/15053"}],"collection":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/comments?post=15053"}],"version-history":[{"count":8,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts\/15053\/revisions"}],"predecessor-version":[{"id":41855,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/posts\/15053\/revisions\/41855"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/media\/39780"}],"wp:attachment":[{"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/media?parent=15053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/categories?post=15053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpapp.kaptest.com\/study\/wp-json\/wp\/v2\/tags?post=15053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}