{"id":734252,"date":"2024-09-20T12:35:45","date_gmt":"2024-09-20T07:05:45","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=734252"},"modified":"2024-09-20T13:25:47","modified_gmt":"2024-09-20T07:55:47","slug":"quiz-4-class-9-science-chapter-4-structure-of-the-atom","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-4\/","title":{"rendered":"Quiz 4 \u2013 Class 9 Science Chapter 4 Structure Of Atom"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-4\/#Class_9_Science_Chapter_4_Structure_Of_Atom_Quiz_4\" title=\"Class 9 Science Chapter 4 Structure Of Atom Quiz 4\">Class 9 Science Chapter 4 Structure Of Atom Quiz 4<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-4\/#Class_9_Chemistry_Chapter_4_Structure_Of_The_Atom_Quiz_4_Questions\" title=\"Class 9 Chemistry Chapter 4 Structure Of The Atom Quiz 4 Questions\">Class 9 Chemistry Chapter 4 Structure Of The Atom Quiz 4 Questions<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Class_9_Science_Chapter_4_Structure_Of_Atom_Quiz_4\"><\/span>Class 9 Science Chapter 4 Structure Of Atom Quiz 4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Are you ready to explore the fundamentals of atomic structure with our <strong>Class 9 Science Chapter 4 Structure of the Atom Quiz<\/strong>? This quiz is designed specifically to help you strengthen your understanding of key concepts from Chapter 4 of your NCERT syllabus, covering everything from the basics of atomic particles to isotopic notations and mass numbers.<\/p>\n<p>The <strong>Quiz on Atom Structure for Class 9<\/strong> is an excellent resource for revision and self-assessment, helping you evaluate your knowledge before exams. The multiple-choice questions are crafted to challenge your grasp of crucial topics like electrons, protons, neutrons, and atomic models. Not only does this <strong>Atomic Structure Quiz<\/strong> test your retention, but it also provides detailed explanations for each answer, helping you reinforce any weak areas.<\/p>\n<p>Taking this <strong>Class 9 Chemistry Chapter 4 Quiz<\/strong> helps you prepare more effectively by focusing on important concepts that are commonly tested in exams. Whether you&#8217;re working on MCQs for structure of the atom or simply looking to revise with <strong>Class 9 Science Chapter 4 questions and answers<\/strong>, this quiz is a powerful tool in mastering the chapter&#8217;s content.<\/p>\n<p>The chapter also delves into early atomic models like J.J. Thomson\u2019s and Rutherford\u2019s experiments, and covers <strong>atomic structure quiz questions<\/strong> on electron shells and isotopic notation. By practicing <strong>multiple-choice questions on the structure of the atom<\/strong>, students can improve their exam accuracy, reinforce their learning, and retain difficult concepts more effectively.<\/p>\n<p>Quizzes on <strong>Class 9 Science Chapter 4<\/strong> test your knowledge of atomic structure through practical questions, making learning interactive and helping you recall important facts like atomic mass, atomic number, and electron configuration.<\/p>\n<p><strong>Class 9 Science Structure of the Atom Quiz 4 Rules<\/strong><\/p>\n<ul>\n<li><strong>Time Limit:<\/strong><br \/>\nYou have <strong>15 minutes<\/strong> to complete the quiz. Make sure to manage your time carefully, so you have enough time to review each question before submitting.<\/li>\n<li><strong>Multiple Choices:<\/strong><br \/>\nEach question will offer <strong>multiple options<\/strong>. Select the one that seems most accurate based on your understanding of the topic.<\/li>\n<li><strong>Single Correct Answer:<\/strong><br \/>\nEach question has only <strong>one correct answer<\/strong>. Choose the best option based on your knowledge from <strong>Chapter 4: Structure of the Atom<\/strong>.<\/li>\n<li><strong>No Negative Marking:<\/strong><br \/>\nThere is <strong>no penalty for incorrect answers<\/strong>. If you are unsure about a question, feel free to make an educated guess without worrying about losing points.<\/li>\n<\/ul>\n<p><strong>Class 9 Science Structure of the Atom Quiz 4 Structure<\/strong><\/p>\n<ul>\n<li><strong>Total Questions:<\/strong><br \/>\nThe quiz consists of <strong>10 questions<\/strong>.<\/li>\n<li><strong>Topics Covered:<\/strong><br \/>\nThis quiz focuses on key concepts from <strong>Chapter 4: Structure of the Atom<\/strong>. Topics include:<\/li>\n<\/ul>\n<ul>\n<li>Discovery of electrons, protons, and neutrons.<\/li>\n<li>Rutherford\u2019s atomic model.<\/li>\n<li>Bohr\u2019s atomic model.<\/li>\n<li>Atomic number, mass number, and isotopes.<\/li>\n<li>Electronic configuration of atoms.<\/li>\n<\/ul>\n<p>By following these rules and understanding the structure, you&#8217;ll be well-prepared to complete the quiz successfully. Good luck.<\/p>\n<div class=\"card\" style=\"text-align: center;\">\n<p><a class=\"btn btn-primary\" href=\"https:\/\/infinitylearn.com\/online-courses-cbse-class-9?utm_source=surge&amp;utm_medium=interlinking\"><br \/>\n<img loading=\"lazy\" class=\" lazyloaded\" style=\"width: 100%; border-radius: 10px;\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2024\/09\/class-9-cbse-foundation-course.png.webp\" alt=\"class 9 cbse foundation course\" width=\"1201\" height=\"636\" data-src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2024\/09\/class-9-cbse-foundation-course.png.webp\" \/><\/a><a class=\"btn btn-primary\" href=\"https:\/\/infinitylearn.com\/online-courses-cbse-class-9?utm_source=surge&amp;utm_medium=interlinking\"><button><strong>Class 9 CBSE Foundation Course<\/strong><\/button><\/a><\/p>\n<div style=\"text-align: center;\">The Class 9 CBSE Foundation Course is designed to be the most competitive educational program in India, providing an exceptional online learning experience. Our focused batch encompasses all crucial subjects, ensuring comprehensive preparation for students.<\/div>\n<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Class_9_Chemistry_Chapter_4_Structure_Of_The_Atom_Quiz_4_Questions\"><\/span>Class 9 Chemistry Chapter 4 Structure Of The Atom Quiz 4 Questions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Question 1: The specific heat of a metal is 0.16. Its approximate atomic weight would be:<\/strong><\/p>\n<p>a) 32<br \/>\nb) 16<br \/>\nc) 40<br \/>\nd) 64<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>c) 40.<\/strong><\/p>\n<p>According to the relation between specific heat and atomic weight, specific heat \u00d7 atomic weight = 6.4. Thus, 0.16 \u00d7 atomic weight = 6.4, and atomic weight = 6.4 \/ 0.16 = 40.<\/p>\n<\/details>\n<p><strong>Question 2: Assertion (A): Atomic masses of elements are expressed in \u2018U\u2019. Reason (R): a.m.u means atomic mass unit.<\/strong><\/p>\n<p>a) Both A and R are correct and R is the correct explanation of A<br \/>\nb) Both A and R are correct but R is not the correct explanation of A<br \/>\nc) A is correct, R is incorrect<br \/>\nd) A is incorrect, R is correct<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>b) <\/strong><\/p>\n<p>Both A and R are correct but R is not the correct explanation of A.<\/p>\n<\/details>\n<p><strong>Question 3: How many protons are present in an atom with an atomic number of 35?<\/strong><\/p>\n<p>a) 35 protons<br \/>\nb) 45 protons<br \/>\nc) 25 protons<br \/>\nd) 40 protons<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) 35 protons.<\/strong><\/p>\n<p>The atomic number of an element is defined as the number of protons in the nucleus. Therefore, an atom with atomic number 35 has 35 protons, which corresponds to the element Bromine (Br).<\/p>\n<\/details>\n<p><strong>Question 4: How do you represent the nucleus using isotopic notation?<\/strong><\/p>\n<p>a) Protons and neutrons<br \/>\nb) Protons and electrons<br \/>\nc) Electrons and neutrons<br \/>\nd) None of the above<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) Protons and neutrons.<\/strong><\/p>\n<p>In isotope notation, the mass number represents the total number of protons and neutrons in the nucleus. For example, Hydrogen-1 (\u00b9H) has one proton and no neutrons.<\/p>\n<\/details>\n<p><strong>Question 5: What element has a mass number of 40 and 20 protons?<\/strong><\/p>\n<p>a) Calcium<br \/>\nb) Silicon<br \/>\nc) Nitrogen<br \/>\nd) Chlorine<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) Calcium.<\/strong><\/p>\n<p>An element with 20 protons has an atomic number of 20, which corresponds to calcium. The mass number is the sum of protons and neutrons, so Calcium has a mass number of 40 and 20 protons.<\/p>\n<\/details>\n<p><strong>Question 6: What is the atomic mass of calcium carbonate (CaCO\u2083)?<\/strong><\/p>\n<p>a) 100g<br \/>\nb) 40g<br \/>\nc) 120g<br \/>\nd) None of these<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) 100g.<\/strong><\/p>\n<p>The atomic mass of calcium (Ca) is 40, carbon (C) is 12, and oxygen (O) is 16. Calcium carbonate contains 1 atom of calcium, 1 atom of carbon, and 3 atoms of oxygen. Thus, the total mass is: 40 + 12 + (3 \u00d7 16) = 100g.<\/p>\n<\/details>\n<p><strong>Question 7: Molecular mass is defined as:<\/strong><\/p>\n<p>a) The mass of one atom compared with the mass of one molecule<br \/>\nb) The mass of one atom compared with the mass of one atom of hydrogen<br \/>\nc) The mass of one molecule of any substance compared with the mass of one atom of C-12<br \/>\nd) None of the above<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>c) The mass of one molecule of any substance compared with the mass of one atom of C-12.<\/strong><\/p>\n<p>Molecular mass is the sum of the atomic masses of the atoms in a molecule and is compared relative to C-12, which has a mass of 12 units.<\/p>\n<\/details>\n<p><strong>Question 8: If 1\/6 (instead of 1\/12) of a carbon atom&#8217;s mass is taken as the relative atomic mass unit, the mass of one mole of a substance will:<\/strong><\/p>\n<p>a) Remain unchanged<br \/>\nb) Be a function of the molecular mass of the substance<br \/>\nc) Decrease by half<br \/>\nd) Increase twice<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) Remain unchanged.<\/strong><\/p>\n<p>If the atomic mass unit becomes twice as large, the relative molar mass will become half, keeping the overall product unchanged.<\/p>\n<\/details>\n<p><strong>Question 9: The atomic weight of hydrogen is:<\/strong><\/p>\n<p>a) 1u<br \/>\nb) 1g<br \/>\nc) 2g<br \/>\nd) 2u<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) 1u.<\/strong><\/p>\n<p>Atomic weight is expressed in atomic mass units (amu or unified mass units), and the atomic weight of hydrogen is 1u.<\/p>\n<\/details>\n<p><strong>Question 10: 1 gram-atom of oxygen is:<\/strong><\/p>\n<p>a) 1g of oxygen<br \/>\nb) 16g of oxygen<br \/>\nc) 22.4g of oxygen<br \/>\nd) 8g of oxygen<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>b) 16g of oxygen.<\/strong> 1 gram-atom of oxygen means its atomic weight in grams, which is 16g.<\/p>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>Class 9 Science Chapter 4 Structure Of Atom Quiz 4 Are you ready to explore the fundamentals of atomic structure [&hellip;]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Structure Of The Atom quiz 4","_yoast_wpseo_title":"Quiz 4 Class 9 Science Chapter 4 Structure Of The Atom with Answers","_yoast_wpseo_metadesc":"Test your knowledge with Quiz 4 on Class 9 Science Chapter 4: Structure of the Atom. Answer questions and review concepts in just 15 minutes","custom_permalink":"free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-4\/"},"categories":[11056],"tags":[],"table_tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quiz 4 Class 9 Science Chapter 4 Structure Of The Atom with Answers<\/title>\n<meta name=\"description\" content=\"Test your knowledge with Quiz 4 on Class 9 Science Chapter 4: Structure of the Atom. 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