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chapter organic chemistry

10th Class Chemistry Chapter 11 Organic Chemistry Complete Solved Exercise

Chemistry Notes Chapter: Organic Chemistry (Complete solved exercise + Self-assessment exercises) Multiple Choice Questions: Condensed structural formula for butane is CH3-CH2-CH3 CH3-CH2-CH2-CH3 CH3-CH2-CH2-CH2-CH3 CH3-CH3 Solution: Condensed structural formula for butane is CH3-CH2-CH2-CH3. Therefore, the answer is b. ————————————————- CH3-CH2-CH3 is the chemical formula for: Ethane Propane Butane Pentane Solution: In CH3-CH2-CH3 three carbon atoms are …

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Gas Discharge Tube Experiment | Discovery of Cathode rays

Discharge tube Experiment (William Crooks Experiment) (Discovery of Electrons / Cathode rays)  Gases are bad conductors of electricity but it is observed that at low pressure they conduct electricity. For this William purpose Crooks developed a discharge tube or cathode ray tube. The gas discharge tube consists of : 1. Cylindrical glass tube 2. Two …

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Why do atoms form chemical bonds? – Chemistry Notes

 Why do atoms form chemical bonds?                             OR Why most atoms are chemically bonded to other atoms in nature? ANSWER: Chemical bond:  The attractive force which holds the atoms together to form a compound or molecule is called a Chemical bond. REASONS:  Every system in the universe tends to lower its energy, in order to …

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Important mcqs Class 11 Chemistry with Answers Chapter wise

Chapter-Wise multiple Choice Question with brief answers for Class 11 Chemistry: Chapter 1: Basic Concepts of Chemistry Important MCQs Chapter 2 :Structure of Atom Important MCQs (Part 1) Chapter 2 :Structure of Atom Important MCQs (Part 2) Chapter 3 Chemical Bonding Important MCQs (Part 1) Chapter 3 : Chemical Bonding MCQS ( Part 2) More …

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Chemistry Class 11 Structure Of Atom Important MCQ’s

Structure Of Atom Important MCQ’s for Exams: Positive rays are produced in discharge tube: 1.  From cathode surface 2. From anode surface 3.By ionization of gas molecules 4. Both a & b Answer )By ionization of gas molecules Brief Explanation : Goldstein found that positive rays consists of positively charged ions . The ions are …

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Rutherford Atomic Model- Alpha Scattering Experiment

Rutherford Atomic Model:   In 1911, Lord Rutherford made an experiment to construct an atomic model. He took a thin gold foil and bombarded it with α-particles. Gold foil was surrounded by photographic film . Rutherford’s Observations: He observed in alpha scattering experiment that : Most of α-rays passed through gold foil un-deflected.                                                                                                Only a …

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Copper (Cu)-Important Transition Element

Copper (Cu):  It is an important and useful metal. It belongs to group I-B which consists of copper, silver and gold. These three metals are called coinage metal as in past they were used to make currency coins.  Copper objects are found among the remains of many ancient civilizations including Egypt, Asia Minor, China, Southern …

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