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This online service offers easy access to the NCERT textbooks. The service covers textbooks of all subjects published by NCERT for classes I to XII in Hindi, English and Urdu.
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Prelims - NCERT
This textbook of Science for Class X is a continuation of our attempt in the Class IX Science textbook to comply with the guidelines of the National Curriculum Framework-2005.
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Exemplar Problem - NCERT
Science 1.Food: Where Does It Come From? 2.Components of Food 3.Fibre to Fabric 4.Sorting Materials and Groups 5.Separation of Substances 6.Changes Around Us 7.Getting to Know Plants 8.Body Movement 9.The Living Organisms and their Surroundings 10.Motion and Measurement of Distances 11.Light 12.Electricity and Circuits 13.Fun with Magnets 14.Water
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CHAP 11 - NCERT
(We know that an electron possesses a negative charge of 1.6 × 10–19 C.) The electric current is expressed by a unit called ampere (A), named after the French scientist, Andre-Marie Ampere (1775–1836). One ampere is constituted by the flow of one coulomb of charge per second, that is, 1 A = 1 C/1 s.
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CHAP 1.pmd - NCERT
(a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (iii) and (iv) 10. Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved? (i) Displacement reaction (ii) Precipitation reaction (iii) Combination reaction
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CHAP 4 - NCERT
In Class IX, we learnt about the combining capacity of various elements and how it depends on the number of valence electrons. Let us now look at the electronic configuration of carbon.
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NCERT
NCERT
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Chapter 10their Characteristics Living Creatures: Exploring - NCERT
10 Living Creatures: Exploring their Characteristics is not even moving could be a body part of a living snail. The teacher i Activity 10.1: Let us record
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“Facts are not science — as the dictionary is not literature.” Martin H ...
Recall the law of conservation of mass that you studied in Class IX; mass can neither be created nor destroyed in a chemical reaction. That is, the total mass of the elements present in the products of a chemical reaction has to be equal to the total mass of the elements present in the reactants.