chemistry

Class 10 Chemistry Chapter Chemical Equilibrium Important Questions with Answers

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Class 10 chemistry chapter 1 chemical equilibrium Important short Q/A Answer the Following Questions: Q1): Define active mass? Ans): The active mass of a substance is defined as the quantity of reactants and products wholly engaged in the reaction for a dilute solution in moles.dm-3. —————————————— Q2): Describe the law of mass action? Ans): The …

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Classification of Organic Compounds Based on Structure

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Classification of Organic Compounds Organic compounds are hydrocarbons and its derivatives. Due to the unique properties of organic compounds that carbon is not only linked with carbon but also with other elements like nitrogen, oxygen, sulphur etc to form a long chain or ring compounds. Therefore, organic compounds are in millions. To study organic compounds …

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Chemistry Class 9th Chapter 4 important questions notes

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Chemistry Class 9th Chapter 4 notes Important questions covered: State octet and duplet rule? What is a chemical bond? Why do atoms form a chemical bond? Explain the two concepts, which explain the chemical bonding? What is an Ionic bond? Explain with an example. Write a note on the Covalent bond? How does Al form …

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What is the main distinction between ionic and covalent bonds? Explain with suitable examples.

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What is the main distinction between ionic and covalent bonds? Explain your answer with suitable examples. ANSWER : Ionic Bond : The bond formed by the complete transfer of electrons from one atom to another is called an ionic bond. Its also known as Electrovalent Bond. CONDITIONS FOR IONIC BOND:  Following are the conditions that …

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Write a note on the Covalent bond?

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Write a note on the Covalent bond? ANSWER: COVALENT BOND: INTRODUCTION: G.N Lewis proposed that atoms could attain stable electronic configuration by sharing electrons between them. Covalent Bond Definition:  The bond which is formed by the mutual sharing of electrons is called a covalent bond.  REPRESENTATION OF COVALENT BOND: The shared pair of electrons are …

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Diagram Representation of NaCl

What is an Ionic bond? Explain with an example.

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What is an Ionic bond? Explain with an example. ANSWER:  Ionic Bond Definition:  “The chemical bond which is formed due to complete transfer of electrons from one atom to another atom is called Ionic bond or electrovalent bond”. Conditions for Ionic Bonding: Following are the conditions which are necessary for the formation of an Ionic …

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Explain the two concepts, which explain the chemical bonding?

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Explain the two concepts, which explain the chemical bonding? ANSWER:    Chemical bonding is explained with the help of two important concepts. The Valence Concept The Orbital Concept The Valence Concept (Electric theory of valence) INTRODUCTION:       In 1916, G.N Lewis and W. Kossel presented the electronic theory of valence. STATEMENT:  It states that “In a …

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Class 11 Chemistry Chapter 1 Stoichiometry easiest pdf notes download

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Class 11 Chemistry Chapter 1 Stoichiometry Topics covered: Chemistry definition Mole concept Avogadro’s number Applications/ Significance of mole concept and Avogadro’s number Gram atom, Gram molecule, Gram formula, Gram ion Molar mass definition and examples Molar volume definition What is meant by stoichiometry Law of Conservation of mass Law of Constant Composition( Law of definite …

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Gas Discharge Tube Experiment | Discovery of Cathode rays

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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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