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Class 10th notes
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Ko'proq ko'rsatish📈 Telegram kanali Class 10th notes analitikasi
Class 10th notes (@class_10_notes) Ingliz til segmentidagi kanali faol ishtirokchi. Hozirda hamjamiyat 23 897 obunachidan iborat bo'lib, Taʼlim toifasida 8 322-o'rinni va Hindiston mintaqasida 18 188-o'rinni egallagan.
📊 Auditoriya ko‘rsatkichlari va dinamika
невідомо sanasidan buyon loyiha tez o‘sib, 23 897 obunachiga ega bo‘ldi.
19 Iyun, 2026 dagi oxirgi ma’lumotlarga ko‘ra kanal barqaror faollikka ega. Oxirgi 30 kunda obunachilar soni -645 ga, so‘nggi 24 soatda esa -14 ga o‘zgardi va umumiy qamrov yuqori darajada qolmoqda.
- Tasdiqlash holati: Tasdiqlanmagan
- Jalb etish (ER): Auditoriya o‘rtacha 13.94% darajada jalb etiladi. Nashrdan keyingi dastlabki 24 soatda kontent odatda umumiy obunachilar sonining 1.01% ini tashkil etuvchi reaksiyalarni to‘playdi.
- Post qamrovi: Har bir post o‘rtacha 0 marta ko‘riladi; birinchi sutkada odatda 242 ta ko‘rish yig‘iladi.
- Reaksiyalar va o‘zaro ta’sir: Auditoriya faol: har bir postga o‘rtacha 0 ta reaksiya keladi.
- Tematik yo‘nalishlar: Kontent cbse, chapter, sample, syllabus, pattern kabi asosiy mavzularga jamlangan.
📝 Tavsif va kontent siyosati
Muallif resursni shaxsiy fikrni ifoda etish maydoni sifatida ta’riflaydi:
“Contact here at @PromoXtalk_bot for any business/ promotion related queries
Contact here @MaterialXrequest_bot for requesting any Study materials”
Yuqori yangilanish chastotasi (oxirgi ma’lumot 20 Iyun, 2026 da olingan) sababli kanal doimo dolzarb va katta qamrovli bo‘lib qoladi. Analitika auditoriya kontent bilan faol hamkorlik qilishini, uni Taʼlim toifasidagi muhim ta’sir nuqtasiga aylantirishini ko‘rsatadi.
23 897
Obunachilar
-1424 soatlar
-1317 kunlar
-64530 kunlar
Postlar arxiv
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🧠 Memory Tricks for Class 10 Science
🔥 Physical vs Chemical Changes
1. Burning → Chemical (new substance + energy released)
2. Melting/Ice → Physical (no new substance, just state change)
3. Boiling water → Physical
4. Rusting iron → Chemical (new brown flaky substance)
5. Cutting vegetables → Physical
6. Cooking vegetables → Chemical (new taste, smell, can’t reverse)
7. Dissolving salt in water → Physical (can get salt back)
8. Dissolving milk powder in water → Physical
9. Fermentation of sugar → Chemical (alcohol forms, irreversible)
10. Photosynthesis → Chemical (new glucose + O₂ formed)
👉 Shortcut: If new substance is formed → Chemical. If only appearance changes → Physical.
⚗️ Acids, Bases & Salts
1. Acid + Metal → H₂ gas (remember: “Acid attacks Metal → Hydrogen flies”)
Example: Zn + H₂SO₄ → ZnSO₄ + H₂↑
2. Acid + Base → Salt + Water (Neutralization reaction 🌊)
Example: HCl + NaOH → NaCl + H₂O
3. Carbonate + Acid → CO₂ gas (remember: “C-A → CO₂”)
Example: Na₂CO₃ + HCl → NaCl + CO₂↑ + H₂O
4. Bases feel soapy, Acids taste sour (don’t taste in lab 😂 just remember lemon = acid, soap = base).
5. Litmus Test:
Acid → Blue to Red
Base → Red to Blue
🔄 Types of Chemical Reactions
1. Combination = Coming Together
A + B → AB
(Example: C + O₂ → CO₂)
2. Decomposition = Breaking
AB → A + B
(Heat/Light/Electricity used to break down)
3. Displacement = Strong pushes Weak
A + BC → AC + B
(Example: Zn + CuSO₄ → ZnSO₄ + Cu)
4. Double Displacement = Exchange of Partners 💍
AB + CD → AD + CB
(Example: Na₂SO₄ + BaCl₂ → BaSO₄↓ + NaCl)
5. Oxidation = Oxygen Gain / Hydrogen Loss
6. Reduction = Oxygen Loss / Hydrogen Gain
👉 Trick: OIL RIG → Oxidation Is Loss, Reduction Is Gain (of electrons).
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🌟 Super Quick Exam Hacks
Burning, Cooking, Rusting, Photosynthesis, Digestion = Chemical
Cutting, Melting, Boiling, Dissolving (reversible) = Physical
Color change, gas formation, heat/light, precipitate = Always Chemical Reaction sign
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This question may look very easy, but I’ve seen many students making mistakes in it.
Always remember these two keywords:
👉 Burning = Chemical reaction 👉 Melting = Physical reactionNow, in this question they are asking about burning, so the correct answer will be Chemical Reaction.
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Above are all the previous year questions of chapter 1 chemical reaction and questions 👆
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When dilute hydrochloric acid reacts with copper oxide powder, a blue-green solution forms. What is the new compound responsible for this color?
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Which of the following equations for the reaction of iron with steam is correctly balanced?
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What is the correct coefficient for FeSO₄ when the equation is balanced: FeSO₄(s) → Fe₂O₃(s) + SO₂(g) + SO₃(g)?
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Which set of coefficients correctly balances the equation: Al(s) + CuCl₂(aq) → AlCl₃(aq) + Cu(s)?
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Identify the type of reaction: Fe(s) + CuSO₄(aq) → FeSO₄(aq) + Cu(s)
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Identify the type of reaction: Na₂SO₄(aq) + BaCl₂(aq) → BaSO₄(s) + 2NaCl(aq)
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Select the correctly balanced equation for the thermal decomposition of lead(II) nitrate.
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Which option shows the correctly balanced equation with physical states for the reaction between aqueous silver nitrate and aqueous sodium chloride?
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What happens when white silver chloride is exposed to sunlight, and what type of reaction is this?
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On what fundamental principle is the balancing of chemical equations based?
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Which of the following is a balanced equation for a double displacement reaction?
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How are oxidation and reduction defined in terms of oxygen or electrons?
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What happens chemically when quicklime (calcium oxide) is added to a bucket of water?
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What is the main difference between an endothermic and an exothermic reaction?
