Types of chemical reaction

Chemical reactions hamare aas-paas aur hamari body ke andar har waqt hoti rehti hain. Jab ek ya ek se zyada substances (reactants) aapas mein interact karke naye substances (products) banate hain, toh use chemical reaction kehte hain. Is dauran chemical bonds toot-te hain aur naye bonds bante hain. ​Chemical reactions ko unke behavior aur substances ke badalne ke tarike ke hisab se majorly in types mein divide kiya gaya hai: ​1. Combination Reaction (Sanyojan Abhikriya) ​Is reaction mein do ya do se zyada simple substances (elements ya compounds) aapas mein judkar ek single, naya product banate hain. Isko samajhne ka asaan tarika hai: A + B gives AB. ​Example: Jab Magnesium ribbon ko hawa mein jalaya jata hai, toh wo Oxygen ke sath combine hokar Magnesium Oxide banata hai. Iske alawa, koyle ka jalna (Carbon + Oxygen gives Carbon Dioxide) bhi isi ka example hai. ​2. Decomposition Reaction (Viyojan Abhikriya) ​Yeh Combination Reaction ka bilkul ulta hota hai. Isme ek single compound break down (toot) hokar do ya do se zyada simpler substances mein badal jata hai. Isko todne ke liye energy (heat, light, ya electricity) ki zaroorat hoti hai. Isko hum keh sakte hain: AB gives A + B. ​Thermal Decomposition: Jab heat ki wajah se compound toote. Jaise Calcium Carbonate (limestone) ko heat karne par wo Calcium Oxide aur Carbon Dioxide mein badal jata hai. ​Electrolytic Decomposition (Electrolysis): Jab electricity pass karke compound ko toda jaye. Jaise paani (Water) se electricity pass karne par wo Hydrogen aur Oxygen gas mein toot jata hai. ​Photolytic Decomposition: Jab light (sunlight) ki wajah se compound toote. Jaise Silver Chloride ko dhoop mein rakhne par wo grey color ke Silver aur Chlorine gas mein badal jata hai. ​3. Displacement Reaction (Visthapan Abhikriya) ​Is reaction mein ek zyada reactive element (highly reactive) kisi kam reactive element ko uske salt solution se alag (displace) kar deta hai. Isko samajhne ke liye: A + BC gives AC + B (jahan A, B se zyada reactive hai). ​Example: Agar aap Iron ki keel (iron nail) ko Copper Sulphate ke blue solution mein dalenge, toh Iron kyunki Copper se zyada reactive hai, wo Copper ko uski jagah se hata dega. Isse solution ka rang green ho jata hai aur Iron Sulphate ban jata hai, aur Copper alag ho jata hai. ​4. Double Displacement Reaction (Dvi-visthapan Abhikriya) ​Is reaction mein do alag-alag compounds ke beech mein unke ions ka exchange (adla-badli) hota hai, jisse do naye compounds bante hain. Isme aksar ek insoluble substance banta hai jise precipitate kehte hain. Isko hum AB + CD gives AD + CB ke roop mein dekh sakte hain. ​Example: Jab Sodium Sulphate aur Barium Chloride ke solutions ko aapas mein milaya jata hai, toh Barium Sulphate ka ek white solid (precipitate) banta hai aur sath mein Sodium Chloride banta hai. ​5. Oxidation and Reduction (Redox Reactions) ​Yeh do reactions hamesha sath-sath hoti hain, isliye inhein milakar Redox kaha jata hai. ​Oxidation: Kisi substance mein Oxygen ka judna ya Hydrogen ka nikalna Oxidation kehlata hai. ​Reduction: Kisi substance mein Hydrogen ka judna ya Oxygen ka nikalna Reduction kehlata hai. ​Example: Jab Copper Oxide ko Hydrogen gas ke sath garam kiya jata hai, toh Copper Oxide se Oxygen nikal jati hai (uska Reduction hota hai) aur Hydrogen mein Oxygen jud jati hai (uska Oxidation hota hai). ​Do aur important types (Energy ke basis par): ​Exothermic Reaction: Jin reactions mein product banne ke sath-sath heat (energy) bahar nikalti hai. Jaise hamara saans lena (Respiration) ya LPG gas ka jalna. ​Endothermic Reaction: Jin reactions ko hone ke liye bahar se heat ya energy absorb karni padti hai. Jaise Photosynthesis (poudhon ka khana banana) ya decomposition reactions. ​Kya aapko inme se kisi specific reaction ke chemical formulas ya equations bhi chahiye, ya yeh notes ke liye kaafi hai?