10th Class Chemistry Chapter 11 Solved Exercise Short Questions
Organic Chemistry 10th Class Chemistry Chapter 11 Solved Exercise Short Questions Q 1 : What is meant by the term catenation ? Give an example of a compound that displays catenation . Q 2 : How is coal formed ? Formation of Coal : Coal is formed by the decomposition of dead plants buried under the Earth’s crust millions of year …
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10th Class Chemistry Chapter 10 Solved Exercise Short Questions
Acids, Bases and Salts 10th Class Chemistry Chapter 10 Solved Exercise Short Questions Q 1 : Name three common household substances having a. pH value greater than 7 Caustic soda ( NaOH ) Milk of magnesia ( Mg(OH)2 ) Ca (OH)2 Soap Detergents Shampoo b. pH value less than 7 Sour milk ( lactic acid ) …
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10th Class Chemistry Chapter 9 Solved Exercise Short Questions
Chemical Equilibrium 10th Class Chemistry Chapter 9 Solved Exercise Short Questions Q 1 : What are Irreversible Reactions ? Give a few characteristics of them ? Example : Characteristics of Irreversible Reactions : They are represented by ( →) single arrow . They proceed in one direction . Products do not recombine to form reactants . There is no equilibrium state . …
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9th Class Physics Chapter 9 Exercise Short Questions with Answers
Transfer of Heat 9th Class Physics Chapter 9 Exercise Short Questions with Answers Q 9.2 : Why are metals good conductors of heat ? Metal are good conductors of heat . Reason : Because they contain free electrons which transfer heat , from one end to other end Q 9.3 : Explain why : (a) a metal feels …
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9th Class Physics Chapter 8 Exercise Short Questions with Answers
Thermal Properties of Matter 9th Class Physics Chapter 8 Exercise Short Questions with Answers Q 8.2 : Why does heat flow from hot body to cold body ? Reason : Heat flows from hot body to cold body to attain the condition of thermal equilibrium . The atoms of higher kinetic energy tries to move …
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9th Class Physics Chapter 7 Exercise Short Questions with Answers
Properties of matter 9th Class Physics Chapter 7 Exercise Short Questions with Answers Q 7.2 : How is kinetic molecular model of matter helpful in differentiating various states of matter ? Kinetic molecular model is used to explain three states of matter . Solid , Liquid and Gases . Solid : In solids , molecules …
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9th Class Physics Chapter 6 Exercise Short Questions with Answers
Work and Energy 9th Class Physics Chapter 6 Exercise Short Questions with Answers Q 6.2 : Define work . What is its SI unit ? Work : ” Work is done when a force acting on a body displaces it in the direction of a force .” Formula : Work = Force × distance W …
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9th Class Physics Chapter 5 Exercise Short Questions with Answers
Gravitation 9th Class Physics Chapter 5 Exercise Short Questions with Answers Q 5.2 : What is meant by the force of gravitation ? Force of Gravitation : ” The force due to which every body of the universe attracts every other body is called Force of Gravitation .” Formula : Q 5.3 : Do you …
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9th Class Physics Chapter 4 Exercise Short Questions with Answers
Turning Effect of Forces 9th Class Physics Chapter 4 Exercise Short Questions with Answers Q 4.2 : define the following : (i) Resultant Vector : ” A resultant vector is a single vector that has the same effect as the combined effect of all the vectors to be added .” (ii) Torque : ” The …
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