{"id":734264,"date":"2024-09-20T13:10:53","date_gmt":"2024-09-20T07:40:53","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=734264"},"modified":"2024-09-20T13:25:44","modified_gmt":"2024-09-20T07:55:44","slug":"quiz-5-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-5\/","title":{"rendered":"Quiz 5 \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-5\/#Class_9_Science_Chapter_4_Structure_Of_Atom_Quiz_5\" title=\"Class 9 Science Chapter 4 Structure Of Atom Quiz 5\">Class 9 Science Chapter 4 Structure Of Atom Quiz 5<\/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-5\/#Class_9_Chemistry_Chapter_4_Structure_Of_The_Atom_Quiz_5_Questions\" title=\"Class 9 Chemistry Chapter 4 Structure Of The Atom Quiz 5 Questions\">Class 9 Chemistry Chapter 4 Structure Of The Atom Quiz 5 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_5\"><\/span>Class 9 Science Chapter 4 Structure Of Atom Quiz 5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Are you ready to put your understanding of atomic structure to the test with our Class 9 Science Chapter 4 quiz? This <strong>Structure Of The Atom Quiz 5<\/strong> is the final part of our series on <strong>atomic structure<\/strong> and has been designed to challenge and enhance your knowledge of key concepts from <strong>NCERT Class 9 Chapter 4<\/strong>. It&#8217;s the perfect way to prepare for your exams in a fun and engaging manner.<\/p>\n<p><strong>Why take this quiz?<\/strong><\/p>\n<p>The <strong>Class 9 chemistry chapter 4 quiz 5<\/strong> helps students solidify their grasp of fundamental ideas like electrons, protons, neutrons, and their arrangement in an atom. These topics are vital for understanding more advanced science concepts, so testing yourself with <strong>multiple-choice quiz questions on structure of the atom<\/strong> is a great way to ensure you&#8217;re fully prepared for your upcoming tests.<\/p>\n<p><strong>How does it help?<\/strong><\/p>\n<p>By solving this 5th quiz on<strong> structure of atom class 9<\/strong>, you\u2019ll be able to pinpoint areas that need extra attention while reinforcing the topics you already understand. Quizzes offer instant feedback, which is crucial for boosting your confidence. This <strong>quiz for class 9 science chapter 4<\/strong> will guide you through key points in atomic theory, ensuring you\u2019re ready to face any question that comes your way.<\/p>\n<p><strong>Structure of the Atom Quiz 5 Rules &#8211; Class 9 Chemistry<\/strong><\/p>\n<ul>\n<li><strong>Time Limit<\/strong>: You have <strong>15 minutes<\/strong> to complete this quiz. Ensure that you manage your time wisely, answering each question promptly but accurately.<\/li>\n<li><strong>Multiple Choices<\/strong>: Every question will provide you with several answer options. Read through them carefully and select the option that seems most accurate based on your understanding of the concepts from Chapter 4.<\/li>\n<li><strong>Single Correct Answer<\/strong>: Each question has only <strong>one correct answer<\/strong>. Make sure you choose the answer that aligns best with your knowledge of the chapter.<\/li>\n<li><strong>No Negative Marking<\/strong>: There is no penalty for incorrect answers. If you are unsure of an answer, it\u2019s better to make an educated guess since there are no marks deducted for wrong attempts.<\/li>\n<\/ul>\n<p><strong>Structure of the Atom Quiz 5 Structure &#8211; Class 9 Chemistry<\/strong><\/p>\n<ul>\n<li><strong>Total Questions<\/strong>: This quiz contains <strong>10 questions<\/strong>.<\/li>\n<li><strong>Topics Covered<\/strong>: The quiz focuses on the essential concepts from <strong>Chapter 4 &#8211; Structure of the Atom<\/strong>. Expect questions on:\n<ul>\n<li>The discovery of subatomic particles (protons, neutrons, and electrons)<\/li>\n<li>Models of the atom, including J.J. Thomson\u2019s and Rutherford\u2019s models<\/li>\n<li>Atomic number, mass number, and isotopes<\/li>\n<li>Distribution of electrons in different shells<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>This quiz is designed to test your understanding of these foundational concepts, so ensure you&#8217;re familiar with all the key ideas discussed in the chapter before attempting it.<\/p>\n<p>Good luck, and remember to stay calm and think critically through each question.<\/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_5_Questions\"><\/span>Class 9 Chemistry Chapter 4 Structure Of The Atom Quiz 5 Questions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Question 1: Assertion (A): 1 gm each of hydrogen and deuterium contains the same number of atoms. Reason (R): Hydrogen and deuterium are isobars.<\/strong><\/p>\n<p>a) Both A and R are true, and R is the correct explanation of A.<br \/>\nb) Both A and R are true, but R is not the correct explanation of A.<br \/>\nc) A is true, but R is false.<br \/>\nd) A and R are false.<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>d) A and R are false.<\/strong><\/p>\n<p>Actually, 1 gram of hydrogen and 1 gram of deuterium do not contain the same number of atoms. This is because hydrogen and deuterium have different atomic masses (1 amu for hydrogen and 2 amu for deuterium). Therefore, for a given mass, deuterium will have half the number of atoms as hydrogen. Also, hydrogen and deuterium are not isobars but isotopes.<\/p>\n<\/details>\n<p><strong>Question 2: Which of the following elements has the same molecular mass as its atomic mass?<\/strong><\/p>\n<p>a) Nitrogen<br \/>\nb) Neon<br \/>\nc) Oxygen<br \/>\nd) Chlorine<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>b) Neon.<\/strong><\/p>\n<p>Neon is a noble gas and exists as single atoms (Ne), so its atomic mass (approximately 20 amu) is the same as its molecular mass. Other elements like nitrogen (N\u2082), oxygen (O\u2082), and chlorine (Cl\u2082) exist as diatomic molecules and have molecular masses that are double their atomic masses.<\/p>\n<\/details>\n<p><strong>Question 3: The atomic mass of sulfur is<\/strong><\/p>\n<p>a) 16<br \/>\nb) 31<br \/>\nc) 32<br \/>\nd) 15<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>c) 32.<\/strong><\/p>\n<p>The atomic mass of sulfur is approximately 32 atomic mass units (u).<\/p>\n<\/details>\n<p><strong>Question 4: Atomic mass of nitrogen is<\/strong><\/p>\n<p>a) 28 g<br \/>\nb) 28 u<br \/>\nc) 14 u<br \/>\nd) 14 g<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>c) 14 u.<\/strong><\/p>\n<p>The atomic mass of nitrogen is 14 atomic mass units (u).<\/p>\n<\/details>\n<p><strong>Question 5: Which of the following statements is correct?<\/strong><\/p>\n<p>a) Isobars belong to the same element<br \/>\nb) Isotones belong to the same element<br \/>\nc) Isotopes belong to the same element<br \/>\nd) None of these<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>c) Isotopes belong to the same element.<\/strong><\/p>\n<p>Isotopes are atoms of the same element with the same atomic number but different mass numbers.<\/p>\n<\/details>\n<p><strong>Question 6: Which property of an element is always a natural number?<\/strong><\/p>\n<p>a) Atomic weight<br \/>\nb) Mass number<br \/>\nc) Atomic number<br \/>\nd) Atomic volume<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>b) Mass number.<\/strong><\/p>\n<p>Mass number (the total number of protons and neutrons in an atom) is always a natural number.<\/p>\n<\/details>\n<p><strong>Question 7: The correct atomic masses (in u) for Sodium, Chlorine, Carbon, and Oxygen respectively are:<\/strong><\/p>\n<p>a) 23u, 35.5u, 12u, 16u<br \/>\nb) 21u, 35.5u, 4u, 8u<br \/>\nc) 25u, 33.5u, 8u, 16u<br \/>\nd) 19u, 13.5u, 2u, 12u<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) 23u, 35.5u, 12u, 16u.<\/strong><\/p>\n<p>These are the atomic masses of Sodium (23u), Chlorine (35.5u), Carbon (12u), and Oxygen (16u).<\/p>\n<\/details>\n<p><strong>Question 8: For calculating the molality or the mole fraction of solute, if the molarity is known, it is necessary to know the density of the solution.<\/strong><\/p>\n<p>a) Both (A) and (R) are true and (R) is the correct explanation of (A).<br \/>\nb) Both (A) and (R) are true, but (R) is not the correct explanation of (A).<br \/>\nc) (A) is true, but (R) is false.<br \/>\nd) Both (A) and (R) are false.<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>b) Both (A) and (R) are true, but (R) is not the correct explanation of (A).<\/strong><\/p>\n<p>If the molarity is known, the density of the solution must also be known in order to calculate molality or the mole fraction of the solute. However, molarity and molality are different concepts, and knowing density helps relate them, but does not directly explain them.<\/p>\n<\/details>\n<p><strong>Question 9: A particular element X can be found in three gaseous forms: mono-atomic, di-atomic, and tri-atomic. If the density of one of its forms at a pressure of 8.21 atm and 400 K is 18 gm\/L, then what would be the atomic mass of the element?<\/strong><\/p>\n<p>a) 72<br \/>\nb) 24<br \/>\nc) 36<br \/>\nd) 144<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>a) 72.<\/strong> Using the ideal gas equation, the atomic mass of the element can be calculated as 72 g\/mol.<\/p>\n<\/details>\n<p><strong>Question 10: The ratio of charge to mass would be greater for:<\/strong><\/p>\n<p>a) Proton<br \/>\nb) Electron<br \/>\nc) Neutron<br \/>\nd) Alpha particle<\/p>\n<details>\n<summary><strong>Answer:<\/strong><\/summary>\n<p>The correct answer is <strong>b) Electron.<\/strong><\/p>\n<p>The charge of both the electron and proton is equal in magnitude, but the electron has a much smaller mass compared to the proton. Therefore, the charge-to-mass ratio is higher for the electron. The order of the charge-to-mass ratio is: Neutron &lt; Alpha particle &lt; Proton &lt; Electron.<\/p>\n<\/details>\n","protected":false},"excerpt":{"rendered":"<p>Class 9 Science Chapter 4 Structure Of Atom Quiz 5 Are you ready to put your understanding 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 5","_yoast_wpseo_title":"Quiz 5 on Class 9 Science Chapter 4 Structure Of The Atom with Answers","_yoast_wpseo_metadesc":"Take Quiz 5 on Class 9 Science Chapter 4 Structure of the Atom and test your knowledge. Answer multiple-choice questions and review answers","custom_permalink":"free-online-quizzes\/class-9-science-chapter-4-structure-of-atom-quiz-5\/"},"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 5 on Class 9 Science Chapter 4 Structure Of The Atom with Answers<\/title>\n<meta name=\"description\" content=\"Take Quiz 5 on Class 9 Science Chapter 4 Structure of the Atom and test your knowledge. 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