Chemical

Class 10 CHEMISTRY Chapter-1 Chemical Reaction and Equation | SHORT NOTES

Download Pdf (Link given below) PHYSICAL CHANGE & CHEMICAL CHANGE Basis Physical Change Chemical Change New substance Not formed Formed Type of change Physical properties change Chemical composition changes State/appearance Size, shape or state changes Entire nature of substance changes Reversibility  reversible irreversible Chemical reaction Not a chemical reaction It is a chemical reaction Energy change Very less energy change Energy absorbed or released Chemical bonds No bond breaking or formation Bonds break and new bonds form Mass Mass remains same Mass conserved (reactants = products) Effect on properties No new properties New properties appear Example Melting of ice Rusting of iron CHEMICAL REACTION Process in which new substance are formed with new chemical (may be physical also), is/are formed, is called chemical reaction. *CHARACTERISTISTICS OF CHEMICAL REACTION 1. Evolution of Gas 2. Formation of Precipitate 3. Change in Temperature 4. Change in State 5. Change in Colour DOWNLOAD PDF of this Short Notes from telegram channel – CLICK HERE LAW OF CONSERVATION OF MASS – Given by Lavoisier in 1774 – It states that: MAKING EQUATIONMORE INFORMATIVE 1. Indicating “Physical State” 2. Indicating heat changes (+heat) 3. Indicating the conditions TYPES OF CHEMICAL REACTION 1. Combination Reaction (A + B = AB) 2. Decomposition Reaction (AB = A + B) #Types of Decomposition Reaction 1)Thermal Decomposition 2)Electro Decomposition 3)Photo Decomposition 3. Displacement Reaction (A + BC = AC + B) More reactive displaces less reactive #Reactivity Series: It is a series in which metals arranged in decreasing order of their reactivities on moving from top to bottom. Trick to Learn: Kaka Nana Chaat Mange Aloo Zara Feke Pade Hai CHAAP. METAL NAME (Reactivity decreases as we move down) Kaka – K (Potassium) Nana – Na (Sodium) Chaat – Ca (calcium) Mange – Mg (Magnesium) Aloo – Al (Aluminium) Zara – Zn (Zinc) Feke – Fe (Iron) Pade – Pb (lead) Hai – H (Hydrogen) C – Cu (Copper) H – Hg (Mercury) A – Ag (Silver) A – Au (Gold) P – Pt (Platinium) Example: 4. Double Displacement Reaction (AB + CD = AC +BD) A reaction in which exchange of ions takes place between two compounds. 5. Redox Reaction A reaction in which oxidation and reduction take place simultaneously. *Reduction: Adding H₂ OR Removing O₂ OR Both *Oxidation: Adding O₂ OR Removing H₂ OR Both DOWNLOAD PDF of this Short Notes from telegram channel – CLICK HERE EFFECTS OF OXIDATION ON EVERYDAY LIFE 1) CORROSION: Process of slowing eating up of metals due to their conversion into oxides, carbonates, etc by the action of air. *Prevention from Corrosion: 2) RANCIDITY: Fats and Oil present in food get oxidized. *Prevention: IMPORTANT EXPERIMENTS 1) BURNING OF MAGNESIUM 2) CASE OF WHITE WASHING Substance – Calcium Oxide (CaO) * Formation of Slaked Lime When quicklime reacts with water, slaked lime is formed: CaO + H₂O → Ca(OH)₂ This reaction is exothermic (heat is released). * Reaction during Whitewashing When slaked lime is applied on walls, it reacts slowly with carbon dioxide from the air to form calcium carbonate: Ca(OH)₂ + CO₂ → CaCO₃ + H₂O 3) TEST FOR H₂ GAS 4) IRON NAILS IN COPPER SULPHATE SOLUTION 5) RUSTING IS FASTER IN COASTAL AREAS DOWNLOAD PDF of this Short Notes from telegram channel – CLICK HERE Explore other chapter’s NOTES – CLICK HERE or visit Gyanora.in For Practicing chapter wise question answers – CLICK HERE or visit QnA.Gyanora.in Follow us on: YouTube: www.youtube.com/@Gyanora Telegram: t.me/gyanora Instagram: https://www.instagram.com/gyan_ora?igsh=aDQxbDk1aDdleHJ6

Read More
Print

SHORT NOTES | Class 10 HISTORY Chapter-5 Print Culture and Modern World | REVISION NOTES

Download Pdf (Link given below) PRINT IN CHINA *HUGE DEMAND OF BOOKS IN CHINA i. Demand for Civil Services Examination. Only people who were preparing for this exam, would demand for books. ii. By 17th Century, dur to growing Urban Culture, use of print expanded. iii. Books like – Fictional Books, and Romantic Plays – were in demand. iv. Women also become Reader as well as publisher of books. # SHANGHAI – become hub of Western Style School of Printing PRINT IN JAPAN *IMPORTANT INFORMATION i. By 13-15 century, diversification of Print in Japan was started. ii. Books were printed in huge quantity which make them cheaper. iii. KITAGAWA UTAMARO – He is famous for his Art called UKIYO # EDO (TOKYO) – become hub of printing in Japan PRINT IN KOREA Famous book of Korea – JIKJI About JIKJI PRINT COMES TO EUROPE Chinese Paper reached Europe Via SILK ROUTE. But Print was not famous in Europe. *For Ordinary People – Wood Block Printing Books were available, as they were cheap. *For Rich People – Books made with VELLUM, which is most expensive.     >> VELLUM – a high quality, smooth printing surface made from scrapped animal skin. GUTENBERG AND THE PRINTING PRESS THE PRINT REVOLUTION Aspect Before the Print Revolution After the Print Revolution Production of books Books were handwritten by scribes, so production was slow. Books were printed using printing presses, increasing speed. Cost of books Books were very expensive and affordable only to the rich. Printed books became cheaper and affordable for many people. Availability Very few books were available due to manual copying. Large numbers of books were produced and widely available. Access to knowledge Knowledge was limited to elites, clergy and scholars. Knowledge reached common people, students and workers. Literacy level Literacy rate was low due to lack of books. Literacy increased as books became easily available. Language used Most books were written in Latin. Books were printed in vernacular (local) languages. Spread of ideas New ideas spread slowly from person to person. Ideas spread quickly through books, pamphlets and newspapers. Education Education was limited and not widespread. Education expanded with textbooks and printed material. Social impact There was little discussion or public debate. Public opinion developed and debates increased. IMPACT OF PRINT REVOLUTION 1. EMERGENCE OF NEW READER 2. RELIGIOUS DEBATES AND FEAR OF PRINT 3. PRINT AND DISSENT READING MANIA It refers to dramatic surge in literacy and demand for books, driven by rising education rates and cheap, accessible printed materials. *Effects of Reading Mania DOWNLOAD PDF of this Short Notes from telegram channel – CLICK HERE POWER OF PRINT PRINT CULTURE AND THE FRENCH REVOLUTION “Print culture created the conditions within which French Revolution occurred” Suitable Arguments: 19th CENTURY 1. CHILDREN 2. WOMEN 3. WORKERS FURTHER INNOVATIONS IN PRINTING 1. Power-Driven Cylindrical press 2. Offset press 3. Photoelectric Controllers 4. Dust Cover / Book Jacket DOWNLOAD PDF of this Short Notes from telegram channel – CLICK HERE INDIA AND THE WORLD OF PRINT *PRINT COMES TO INDIA *RELIGIOUS REFORM AND PUBLIC DEBATES *NEW FORM OF PUBLICATION Visual Culture – by Raja Ravi Verma *WOMEN AND PRINT *POOR AND PRINT *PRINT AND CENSORSHIP DOWNLOAD PDF of this Short Notes from telegram channel – CLICK HERE Explore other chapter’s NOTES – CLICK HERE or visit Gyanora.in For Practicing chapter wise question answers – CLICK HERE or visit QnA.Gyanora.in Follow us on: YouTube: www.youtube.com/@Gyanora Telegram: t.me/gyanora Instagram: https://www.instagram.com/gyan_ora?igsh=aDQxbDk1aDdleHJ6

Read More