1. Explain why the electron gain enthalpy of fluorine is less negative than that of chlorine. Answer. This is due to the small size of the fluorine atom. As a result of the strong interelectronic repulsions in fluorine's relatively small 2p orbitals, the incoming electron does not experience much attraction. 2. The questions covered in Chemistry Class 11 Chapter 3 important questions are based on the vital topics included this Chapter 3: Why Do We Need To Classify Elements? Genesis Of Periodic Classification Modern Periodic Law And The Present Form Of The Periodic Table Nomenclature Of Elements With Atomic Numbers >100
NCERT Exemplar Class 11 Chemistry Solutions Chapter 3 Classification
Question 2. Which important property did Mendeleev use to classify the elements in this periodic table and did he stick to that? Answer: Mendeleev used atomic weight as the basis of classification of elements in the periodic table. He did stick to it and classify elements into groups and periods. More Resources for CBSE Class 11 NCERT Solutions Question 1. An element is present in the third period of the p-block. It has 5 electrons in its outermost shell. Predict its group. How many unpaired electrons does it have? Answer: It belongs to the 15th group (P). It has 3 unpaired electrons. Question 2. An element X with Z = 112 has been recently discovered. Important Questions for CBSE Class 11 Chemistry Chapter 3 - Classification of Elements and Periodicity in Properties Last updated date: 21st Dec 2023 • Total views: 627.6k • Views today: 15.27k Download PDF NCERT Solutions CBSE CBSE Study Material Textbook Solutions CBSE Notes NCERT Solutions NCERT Class 11 NCERT 11 Chemistry Chapter 3: Classification Of Elements And Periodicity NCERT Solutions for Class 11 Chemistry Chapter 3: Classification of Elements and Periodicity in Properties NCERT Solutions Class 11 Chemistry Chapter 3 - Free PDF Download
Class 11 Chemistry Multiple Choice Questions Part 1
Chapter 3: Classification of Elements and Periodicity in Properties Chapter 4: Chemical Bonding and Molecular Structure Chapter 5: States of Matter Chapter 6: Thermodynamics Chapter 7: Equilibrium Chapter 8: Redox Reactions Chapter 9: Hydrogen Chapter 10: The s-Block Elements Chapter 11: The p-Block Elements 1. How many elements are known at present? Ans. There are about 114 elements known at present. 2. Who was the first scientist to classify elements according to their properties? Ans. The German Chemist, Johann Dobereiner in early 1829 was the first to consider the idea of trends among properties of element. 3. Chapter 3 - Classification of Elements and Periodicity in Properties Chapter 4 - Chemical Bonding and Molecular Structure Chapter 5 - States of Matter Chapter 6 - Thermodynamics Chapter 7 - Equilibrium Chapter 8 - Redox Reactions Chapter 9 - Hydrogen Chapter 10 - The s-Block Elements With the basic understanding and regular practice, students can score a good percentage in their board exams. Some of the benefits of NCERT Solutions for Class 11 Chemistry Chapter 3 includes: Class 11 Chemistry Chapter 3 solutions are provided by teachers who have several years of experience and are professional experts in this field.
Important Questions For Class 11 Chemistry Chapter 1 Some Basic
on August 19, 2023, 11:05 AM. NCERT Solutions for Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Hindi and English Medium modified and revised for academic year 2023-24. Class 11 Chemistry chapter 3 MCQ, exercise and intext question answers in Properties are updated for new CBSE session 2023-24. Some Basic Concepts of Chemistry Class 11 Important Questions. Structure of Atom Chemistry Class 11 Chapter Wise Questions. Classification of Elements and Periodicity in Properties Important Questions. Chemical Bonding and Molecular Structure Important Questions. States of Matter Chemistry Class 11 Important Questions.
Question 1. The set representing the correct order of first ionization potential is (a) K > Na > Li (b) Be > Mg > Ca (c) B > C > N (d) Ge > Si > C. Answer Question 2. The increasing order of the a tomifc radius for the elements Na, Rb, K and Mg is (a) Na < K < Mg < Rb (b) K < Na < Mg < Rb (c) Na < Mg < K < Rb (d) Mg < Na < K < Rb Answer Question 3. This final chapter in NCERT solutions for class 11 chemistry further discusses about ozone, acid rains and it's reactions. A total of 20 questions will help students understand various alternative tools required for reducing pollution. NCERT solutions for class 11 chemistry is the right recipe for students who want to go beyond marks in the.
Important Questions for Class 11 Chemistry Chapter 3 Classification of
Chemistry Important Questions Class 11 are given below chapter wise. Some Basic Concepts of Chemistry. Structure of Atom. Classification of Elements and Periodicity in Properties. Chemical Bonding and Molecular Structure. States of Matter. Thermodynamics. Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.(a) Assertion is correct, reason is correct; reason is a correct explanation for. Continue reading Assertion and Reason Questions for Class.
