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Class 10th notes
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显示更多📈 Telegram 频道 Class 10th notes 的分析概览
频道 Class 10th notes (@class_10_notes) 英语 语言赛道中的 是活跃参与者。目前社区聚集了 23 897 名订阅者，在 教育 类别中位列第 8 322，并在 印度 地区排名第 18 188 位。
📊 受众指标与增长动态
自 невідомо 创建以来，项目保持高速增长，吸引了 23 897 名订阅者。
根据 19 六月, 2026 的最新数据，频道保持稳定运转。过去 30 天订阅人数变化为 -645，过去 24 小时变化为 -14，整体触达仍然可观。
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- 互动率 (ER)： 平均受众互动率为 13.94%。内容发布后 24 小时内通常能获得 1.01% 的反应，占订阅者总量。
- 帖子覆盖： 每篇帖子平均可获得 0 次浏览，首日通常累积 242 次浏览。
- 互动与反馈： 受众积极参与，单帖平均反应数为 0。
- 主题关注点： 内容集中在 cbse, chapter, sample, syllabus, pattern 等核心主题上。
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作者将该频道定位为表达主观观点的平台：
“Contact here at @PromoXtalk_bot for any business/ promotion related queries
Contact here @MaterialXrequest_bot for requesting any Study materials”
凭借高频更新（最新数据采集于 20 六月, 2026），频道始终保持新鲜度与高覆盖。分析显示受众积极互动，使其成为 教育 类别中的关键影响点。
23 897
订阅者
-1424 小时
-1317 天
-64530 天
帖子存档
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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?
