Important Questions For Class 11 Chemistry Chapter 1 Some Basic


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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 Class 11 Chemistry Chapter 1 Some Basic

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.


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1. Explain the non linear shape of H 2 S and non planar shape of PCl 3 using valence shell electron pair repulsion theory. Answer. The main atom in H 2 S is S, which has two lone pairs. These lone pairs cause repulsion and displace the H-S bond, resulting in a non-linear shape. PCl 3 has a trigonal planar structure.


Important Questions for Class 11 Chemistry Chapter 3 Classification of

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


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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.


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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.


Chemistry Class 11 Chapter 3 तत्त्वों का वर्गीकरण एवं गुणधर्मों में

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


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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.


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Q1. Arrange s, p and d sub-shells of a shell in the increasing order of effective nuclear charge (Z eff) experienced by the electron present in them. Answer.


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11th Chemistry - Important Unit wise 2 Mark and 3 Mark Questions (Unit 1 to 7) Mr. F. Raja - English Medium - Preview & Download (MAT.NO. 211122) 11th Chemistry - Volume 1 Important 2 Mark and 3 Mark Questions Mr. A. Dinesh - English Medium - Preview & Download (MAT.NO. 212703)


NCERT Solutions for Class 11 Chemistry Chapter 3 Classification of

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.


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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.


Class 11 Chemistry Worksheet on Chapter 1 Some Basic Concepts 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.


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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


Important Questions For Class 11 Chemistry Chapter 1 Some Basic

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


CBSE Class 11 Chemistry Chapter 3 Classification Of Elements And

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