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science </a></li><li><a href="../19519/metals-and-icp-spectroscopy-1.html">Metals and ICP spectroscopy</a></li><li><a href="../19541/catalysts--1.html">Catalysts </a></li><li><a href="../19580/liquid-crystals-1.html">Liquid crystals</a></li><li><a href="../19665/polymers--1.html">Polymers  </a></li><li><a href="../19672/nanotechnology-1.html">Nanotechnology</a></li><li><a href="../19843/environmental-impact-plastics-1.html">Environmental impact - plastics</a></li><li><a href="../19858/superconducting-metals-x-ray-crystallography--1.html">Superconducting metals & X-ray crystallography </a></li><li><a href="../19666/condensation-polymers-1.html">Condensation polymers</a></li><li><a href="../19916/environmental-impact-heavy-metals-1.html">Environmental impact - heavy metals</a></li></ul></li><li><a href="../19284/option-b--1.html" class="father">Option B </a><ul class="level-2"><li><a href="../19290/introduction-to-biochemistry--1.html">Introduction to biochemistry  </a></li><li><a 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fusion & nuclear fission reactions</a></li><li><a href="../19429/solar-energy-1.html">Solar energy</a></li><li><a href="../19437/environmental-impact-global-warming-1.html">Environmental impact - global warming</a></li><li><a href="../19453/electrochemistry-rechargeable-batteries-fuel-cells-1.html">Electrochemistry, rechargeable batteries & fuel cells</a></li><li><a href="../19458/nuclear-fusion-fission-hl--1.html">Nuclear fusion & fission (HL)    </a></li><li><a href="../19470/photovoltaic-cells-and-dsscs-1.html">Photovoltaic cells and DSSCs</a></li></ul></li><li><a href="../19078/option-d-1.html" class="father">Option D</a><ul class="level-2"><li><a href="../19079/pharmaceutical-products-drug-action--1.html">Pharmaceutical products & drug action </a></li><li><a href="../19158/aspirin-penicillin--1.html">Aspirin & penicillin  </a></li><li><a href="../19174/opiates-1.html">Opiates</a></li><li><a href="../19184/ph-regulation-of-the-stomach-1.html">pH regulation of the stomach</a></li><li><a href="../19194/antiviral-medications--1.html">Antiviral medications </a></li><li><a href="../19211/environmental-impact-of-some-medications-1.html">Environmental impact of some medications</a></li><li><a href="../19254/taxol-a-chiral-auxiliary-case-study-1.html">Taxol - a chiral auxiliary case study</a></li><li><a href="../19258/nuclear-medicine--1.html">Nuclear medicine  </a></li><li><a href="../19273/drug-detection-analysis--1.html">Drug detection & analysis </a></li></ul></li></ul></li><li><a href="../16592/practical-scheme-of-work-ia--1.html">Practical scheme of work & IA </a><ul class="level-1"><li><a href="../16682/internal-assessment-1.html" class="father">Internal Assessment</a><ul class="level-2"><li><a href="../18892/scaffolding-the-investigation-1.html">&#039;Scaffolding&#039; the investigation</a></li><li><a href="../18896/timing-organisation--1.html">Timing & organisation </a></li><li><a href="../18905/choosing-the-research-question-1.html">Choosing the research question</a></li><li><a href="../18946/personal-engagement-1.html">Personal engagement</a></li><li><a href="../18950/exploration-1.html">Exploration</a></li><li><a href="../18957/analysis-1.html">Analysis</a></li><li><a href="../18965/evaluation-1.html">Evaluation</a></li><li><a href="../18966/communication-1.html">Communication</a></li><li><a href="../19882/internal-standardization-of-the-ia-1.html">Internal standardization of the IA</a></li><li><a href="../19901/submitting-the-samples-for-moderation-2.html">Submitting the samples for moderation</a></li><li><a href="../33754/ten-suggestions-for-ias-using-secondary-data-1.html">Ten suggestions for IAs using secondary data</a></li><li><a href="../37544/gaining-full-marks-for-a-databased-ia--1.html">Gaining full marks for a databased IA </a></li><li><a href="../19506/ia-example-marking-exercise--1.html">IA example & marking exercise </a></li><li><a href="../23929/genuine-examples-of-moderated-ia-reports-1.html">Genuine examples of moderated IA reports</a></li><li><a href="../25234/examples-of-teacher-marked-ia-reports--1.html">Examples of teacher-marked IA reports </a></li><li><a href="../37542/history-of-internal-assessment-1.html">History of Internal Assessment</a></li></ul></li><li><a href="../16598/mandatory-laboratory-components-1.html" class="father">Mandatory laboratory components</a><ul class="level-2"><li><a href="../16613/formula-of-magnesium-oxide--1.html">Formula of magnesium oxide </a></li><li><a href="../16612/determining-the-mr-of-an-unknown-gas-1.html">Determining the <i>M</i><sub>r</sub> of an unknown gas</a></li><li><a href="../16615/acid-base-titrations--1.html">Acid-base titrations </a></li><li><a href="../16616/a-green-acid-base-practical-1.html">A green acid-base practical</a></li><li><a href="../16617/analysis-of-aspirin-tablets-1.html">Analysis of aspirin tablets</a></li><li><a href="../16618/caco3-in-egg-shells-1.html">CaCO<sub>3</sub> in egg shells</a></li><li><a href="../16644/enthalpy-changes-1.html">Enthalpy changes</a></li><li><a href="../16631/reaction-rates-1.html">Reaction rates</a></li><li><a href="../16635/rate-dependent-factors-1.html">Rate-dependent factors</a></li><li><a href="../16636/determining-ea-for-a-reaction-1.html">Determining <i>E</i><sub>a</sub> for a reaction</a></li><li><a href="../16637/iodination-of-propanone-1.html">Iodination of propanone</a></li><li><a href="../18144/titrations-with-a-ph-meter-1.html">Titrations with a pH meter</a></li><li><a href="../18355/redox-titration-with-kmno4--1.html">Redox titration with KMnO<sub>4</sub> </a></li><li><a href="../16640/voltaic-cells-1.html">Voltaic cells</a></li><li><a href="../16659/3-d-molecular-modelling--1.html">3-D molecular modelling </a></li></ul></li><li><a href="../17168/other-good-practicals-1.html" class="father">Other good practicals</a><ul class="level-2"><li><a href="../17196/common-chemical-reactions-1.html">Common chemical reactions</a></li><li><a href="../227/elements-oxides-of-the-third-period--1.html">Elements & oxides of the third period </a></li><li><a href="../17239/the-halogens-1.html">The halogens</a></li><li><a href="../17162/boiling-points-of-mixtures-1.html">Boiling points of mixtures</a></li><li><a href="../17170/polarity-of-molecules-1.html">Polarity of molecules</a></li><li><a href="../18083/le-chateliers-principle--1.html">Le Chatelier&#039;s principle </a></li><li><a href="../19582/determining-kc-for-an-esterification-reaction-1.html">Determining <i>K</i><sub>c</sub> for an esterification reaction</a></li><li><a href="../18164/redox-reactions-of-vanadium--1.html">Redox reactions of vanadium </a></li><li><a href="../18351/chlorine-in-swimming-pools--1.html">Chlorine in swimming pools </a></li><li><a href="../18178/analysis-of-cuii-ions-in-solution--1.html">Analysis of Cu(II) ions in solution </a></li><li><a href="../18179/percentage-of-copper-in-brass-1.html">Percentage of copper in brass</a></li><li><a href="../18356/electrolytic-cells--1.html">Electrolytic cells </a></li><li><a href="../18598/reactions-of-organic-compounds-1.html">Reactions of organic compounds</a></li><li><a href="../18752/hydrolysis-of-halogenoalkanes-1.html">Hydrolysis of halogenoalkanes</a></li><li><a href="../18784/preparation-of-13-dinitrobenzene--1.html">Preparation of 1,3-dinitrobenzene </a></li><li><a href="../19022/determination-of-an-organic-structure-1.html">Determination of an organic structure</a></li><li><a href="../19887/preparation-of-nylon-66-1.html">Preparation of nylon 6,6</a></li><li><a href="../19343/determination-of-vitamin-c-content--1.html">Determination of vitamin C content </a></li><li><a href="../19342/hydrolysis-of-starch--1.html">Hydrolysis of starch </a></li><li><a href="../19159/preparation-purification-of-aspirin--1.html">Preparation & purification of aspirin </a></li></ul></li><li><a href="../18851/ict-in-practical-work-1.html" class="father">ICT in practical work</a><ul class="level-2"><li><a href="../18852/data-logging--1.html">Data logging </a></li><li><a href="../18853/software-for-graph-plotting--1.html">Software for graph plotting </a></li><li><a href="../18854/spreadsheets-for-data-processing--1.html">Spreadsheets for data processing </a></li><li><a href="../18855/databases-1.html">Databases</a></li><li><a href="../18856/computer-modelling-simulations--1.html">Computer modelling & simulations </a></li></ul></li><li><a href="../16594/group-4-project-1.html" class="father">Group 4 Project</a><ul class="level-2"><li><a href="../16595/practicalities-1.html">Practicalities</a></li><li><a href="../16596/reflective-statement--2.html">Reflective statement </a></li></ul></li><li><a href="../16666/a-new-laboratory-1.html">A new laboratory?</a></li></ul></li><li class="selected"><a href="exams-1.html">Exams</a><ul class="level-1"><li><a href="../16286/essential-facts-1.html" class="father">Essential Facts</a><ul class="level-2"><li><a 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href="../16342/data-response-questions-1.html">Data response questions</a></li><li><a href="../20054/experimental-work-questions-1.html">Experimental work questions</a></li></ul></li><li><a href="../16324/the-examination-process-1.html" class="father">The examination process</a><ul class="level-2"><li><a href="../16316/setting-the-exam-papers-1.html">Setting the exam papers</a></li><li><a href="../16317/predicted-grades-1.html">Predicted grades</a></li><li><a href="../16318/marking-the-papers-1.html">Marking the papers</a></li><li><a href="../16319/commenting-on-the-exams-1.html">Commenting on the exams</a></li><li><a href="../16320/grade-awarding-1.html">Grade Awarding</a></li><li><a href="../16321/enquiry-upon-results-1.html">Enquiry upon results</a></li><li><a href="../16322/chief-examiners-report-1.html">Chief Examiner&#039;s report</a></li><li><a href="../16323/retaking-the-exam-1.html">Retaking the exam</a></li></ul></li><li><a href="../16325/faqs-1.html">FAQs</a></li></ul></li><li><a href="../3147/ib-core-1.html">IB Core</a><ul class="level-1"><li><a href="../3149/learner-profile-1.html">Learner Profile</a></li><li><a href="../21735/extended-essays--1.html" class="father">Extended Essays </a><ul class="level-2"><li><a href="../21736/overview--1.html">Overview </a></li><li><a href="../21780/responsibilities-1.html">Responsibilities</a></li><li><a href="../21790/resources-1.html">Resources</a></li><li><a href="../21800/research-1.html">Research</a></li><li><a href="../21804/writing-the-essay-1.html">Writing the essay</a></li><li><a href="../21810/assessment-1.html">Assessment</a></li><li><a href="../22434/summary-of-advice--1.html">Summary of advice </a></li><li><a href="../25272/faqs--1.html">FAQs </a></li></ul></li><li><a href="../307/theory-of-knowledge-tok-1.html" class="father">Theory of Knowledge (TOK)</a><ul class="level-2"><li><a href="../41171/the-12-tok-concepts-1.html">The 12 TOK concepts</a></li><li><a href="../3507/why-tok-chemistry-1.html">Why TOK & Chemistry?</a></li><li><a href="../3505/a-modern-paradigm-1.html">A modern paradigm</a></li></ul></li></ul></li><li><a href="../17783/fast-track-to-tests-questions-1.html">Fast track to tests & questions</a><ul class="level-1"><li><a href="../17784/sl-multiple-choice-tests-on-individual-topics-1.html">SL Multiple choice tests on individual topics</a></li><li><a href="../24351/sl-multiple-choice-quizzes-on-sub-topics-1.html">SL Multiple choice &#039;quizzes&#039; on sub-topics</a></li><li><a href="../31519/sl-practice-paper-1-exams-1.html">SL Practice Paper 1 exams</a></li><li><a href="../17786/sl-questions-on-each-sub-topic-1.html">SL Questions on each sub-topic</a></li><li><a href="../20431/sl-paper-3-section-a-questions-1.html">SL Paper 3 Section A questions</a></li><li><a href="../17792/sl-questions-on-the-options-1.html">SL Questions on the options</a></li><li><a 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formulas">Misuse of formulas</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16309/ie-graphs.html" title="IE graph(s)">IE graph(s)</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16311/vsepr.html" title="VSEPR">VSEPR</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31240/understanding-and-using-g-.html" title="Understanding and using ΔG ">Understanding and using Δ<em>G </em></a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../32566/manipulating-equilibrium-constants-.html" title="Manipulating equilibrium constants ">Manipulating equilibrium constants </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../31229/understanding-the-activity-series.html" title="Understanding the activity series">Understanding the activity series</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16310/using-electrode-potentials.html" title="Using electrode potentials">Using electrode potentials</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16308/curly-arrows.html" title="&#039;Curly arrows&#039;">&#039;Curly arrows&#039;</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../33687/understanding-hybridization.html" title="Understanding hybridization">Understanding hybridization</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../32529/factors-affecting-the-rate-of-nucleophilic-substitution-reaction.html" title="Factors affecting the rate of nucleophilic substitution reactions">Factors affecting the rate of nucleophilic substitution reactions</a></li></ul></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16313/paper-3--1.html" title="Paper 3 ">Paper 3 </a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16314/advice-to-students-paper-3-1.html" title="Advice to students (Paper 3)">Advice to students (Paper 3)</a></li><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16342/data-response-questions-1.html" title="Data response questions">Data response questions</a></li><ul class="level-2 "><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16339/data-response-example-1.html" title="Data response Example 1">Data response Example 1</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16340/data-response-example-2.html" title="Data response Example 2">Data response Example 2</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../16341/data-response-example-3.html" title="Data response Example 3">Data response Example 3</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17292/data-response-example-4.html" title="Data response Example 4">Data response Example 4</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20333/data-response-example-5.html" title="Data response Example 5">Data response Example 5</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20334/data-response-example-6-.html" title="Data response Example 6 ">Data response Example 6 </a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20367/data-response-example-7-.html" title="Data response Example 7 ">Data response Example 7 </a></li><li class="" style="padding-left: 28px"><i class="expander fa 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2</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20042/experimental-work-question-3.html" title="Experimental work Question 3">Experimental work Question 3</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20065/experimental-work-question-4.html" title="Experimental work Question 4">Experimental work Question 4</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20073/experimental-work-question-5.html" title="Experimental work Question 5">Experimental work Question 5</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20070/experimental-work-question-6.html" title="Experimental work Question 6">Experimental work Question 6</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20076/experimental-work-question-7.html" title="Experimental work Question 7">Experimental work Question 7</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20064/experimental-work-question-8.html" title="Experimental work Question 8">Experimental work Question 8</a></li><li class="" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../20056/experimental-work-question-9.html" title="Experimental work Question 9">Experimental work Question 9</a></li></ul></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16324/the-examination-process-1.html" title="The examination process">The examination process</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16316/setting-the-exam-papers-1.html" title="Setting the exam papers">Setting the exam papers</a></li><li class="" style="padding-left: 14px"><i class="expander fa 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Examiner&#039;s report">Chief Examiner&#039;s report</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16323/retaking-the-exam-1.html" title="Retaking the exam">Retaking the exam</a></li></ul><li class="" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16325/faqs-1.html" title="FAQs">FAQs</a></li></ul></nav></div><!-- /#left-column-->
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</div><section id="main-content"><div id="toc-1672969813" class="toc"><a href="#" class="toc-switcher" title="Show table of contents"><small><i class="fa fa-reorder"></i> Table of contents <span class="pull-right"><i class="fa fa-chevron-down"></i></span></small></a></div><div class="panel panel-darkorange panel-has-colored-body panel-has-border"><div class="panel-heading"><a class="expander pull-right" href="#"><span class="fa fa-plus"></span></a><div><p>What you will find in this section</p></div></div><div class="panel-body"><div class="row-fuild"><div class="span6"><div><ul class="branded"><li>Tips to give to students on how to maximise their marks on each of the three exam papers</li><li>Specific details of areas of difficulty on Papers 2 &amp; 3 and how to teach your students to overcome them</li><li>Fun ways of understanding objectives and using command terms</li><li>Full explanation of grade descriptors and grade boundaries</li><li>Examples of new questions with worked answers for experimental work on Section A on Paper 3</li></ul></div></div><div class="span6"><div><ul class="branded"><li>Advice and new questions with worked answers to prepare your students for data response questions on Section A on Paper 3</li><li>Practice Paper 1 exams for &#39;mocks&#39;</li><li>Full details on the whole examination process from how the exams are written to how they are marked and graded</li><li>Advice on how to arrive at predicted grades</li><li>Why your feedback on the exams is important</li><li>Information and advice on Enquiry upon Results (EUR) and retakes</li></ul></div></div></div></div><div class="panel-footer"><div></div></div></div><hr class="hidden"><div class="yellowBg"><h2>Introduction</h2>We have come a long way since Henry Armstrong made the following statement:<img alt="" height="453" src="../../../ib/chemistry/images/Exams/Exam%20session.jpg" style="margin-top:0.5em;margin-bottom:0.6em;border-top-width:1px;border-right-width:1px;border-bottom-width:1px;border-left-width:1px;border-top-style:solid;border-right-style:solid;border-bottom-style:solid;border-left-style:solid;border-top-color:rgb(153, 153, 153);border-right-color:rgb(153, 153, 153);border-bottom-color:rgb(153, 153, 153);border-left-color:rgb(153, 153, 153);float:right;" title="" width="340"><p style="margin-left:40px;"><br>&ldquo;When Prof. <span data-scayt-word="Ayrton" data-wsc-lang="en_US">Ayrton</span> and I were appointed the first professors of the City and Guilds of London Institute we found ourselves in complete agreement that we would have nothing to do with teaching for examinations.</p><p style="margin-left:40px;">I am proud to say that the <span data-scayt-word="programmes" data-wsc-lang="en_US">programmes</span> of the Guild&rsquo;s Colleges have never been disfigured by references to examinations as objects to be kept in view by students.&rdquo;</p><p style="margin-left:40px;">Henry E.Armstrong<br>(Science Progress,1886)</p><p><br>Rightly or wrongly the examinations now have a central role in most (all?) teachers&#39; and students&#39; lives. The syllabus is written so that it is clear what can be examined and the exams are written using command terms which are commensurate with the level of objective being tested. The pressure is heavily on students to achieve certain high grades in order to continue into higher education.</p><p>This part of the Website looks at every aspect of external examinations.</p><hr class="hidden"></div><hr class="hidden"><div class="blueBg"><h2>Links</h2><p>The main links accessible on the left and below breakdown as follows:</p><h3><a href="../16286/essential-facts-1.html" title="Exams » Essential Facts">Essential Facts</a>&nbsp;</h3><p>This defines precisely the meaning of <em>command term</em> and explains the different levels of objectives. It covers grade descriptors and explains how the component grade boundaries and overall grade boundaries are arrived at together with figures giving the percentage of students attaining each grade. &nbsp;</p><h3><a href="../16302/paper-1-multiple-choice-1.html" title="Exams » Paper 1 (Multiple Choice)">Paper 1 (Multiple Choice)</a>&nbsp;<a href="chemistry/page/43837/paper-1-" title="Paper 1 ">&nbsp; </a></h3><p>The layout, timing, weighting and marks available are given and concrete advice is provided to give to students as to how to prepare for and answer Paper 1 and what the common pitfalls are. Contains practice papers containing new questions together with answers.</p><h3><a href="../16305/paper-2-1.html" title="Exams » Paper 2">Paper 2</a>&nbsp;<a href="chemistry/page/43873/paper-2-" title="Paper 2 ">&nbsp;</a></h3><p>The layout, timing, weighting and marks available are given and concrete advice is provided to give to students as to how to prepare for and answer Paper 2 and what the common pitfalls are. The particular areas of chemistry that students have most difficulty with when answering Paper 2 questions are highlighted and teaching materials provided to help students overcome these difficulties.</p><h3><a href="../16313/paper-3--1.html" title="Exams » Paper 3 ">Paper 3 </a></h3><p>The layout, timing, weighting and marks available are given and concrete advice is provided to give to students as to how to prepare for and answer Paper 3 and what the common pitfalls are. Practice questions together with answers are provided on both experimental work and data response for Section A of Paper 3.</p><h3><a href="../16324/the-examination-process-1.html" title="Exams » The examination process">The examination process</a>&nbsp;&nbsp;</h3><p>This section covers the whole examination process including the final subject report. This includes how the paper is actually written, marked, moderated and graded followed by advice on how to give predicted grades and feedback on the exams to the IB and when and how to apply for a remark.</p><h3><a href="https://www.thinkib.net/chemistry/page/43870/faqs-about-external-assessment-" title="FAQs about external assessment ">FAQs about external assessment </a></h3><p>Answers to questions that are often asked</p><hr class="hidden"></div><h2>Selected Pages</h2><div id="selected-pages"><div class="blog-list"><div class="row-fluid"><div class="span6"><div class="selected-box">
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        <span class="details pull-right">5 June 2022 <i class="fa fa-calendar"></i></span>
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