Chapter 5- Life processes.pdf
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Chapter 6- Control and Coordination.pdf
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coordination NCERT 2024 Notes with Important Questions
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Chapter 7- How do organisms reproduce.pdf
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Chapter 7- How do organisms reproduce NCERT 2024 Notes with Important Questions
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Chapter 8- Heredity and Evolution.pdf
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Chapter 9- Light- reflection and refraction.pdf
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Chapter 9- Light- reflection and refraction NCERT 2024 Notes with Important Questions
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Chapter 10- Human eye and colorful world.pdf
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Chapter 10: Human eye and colorful world NCERT 2024 Notes with Important Questions
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Chapter 11- Electricity.pdf
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Chapter 11: Electricity NCERT 2024 Notes with Important Questions
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Chapter 12- Magnetic effects and electric current.pdf
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Chapter 12: Magnetic effects and electric current NCERT 2024 Notes with Important Questions
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Chapter 13- Our environment.pdf
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Chapter 13: Our environment NCERT 2024 Notes with Important Questions
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What type of reaction is represented by the equation: 2H₂ + O₂ → 2H₂O?
Anonymous Quiz
81%
Combination
12%
Decomposition
4%
Displacement
3%
Double Displacement
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Which of the following is a displacement reaction?
Anonymous Quiz
72%
Zn + H₂SO₄ → ZnSO₄ + H₂
6%
2H₂ + O₂ → 2H₂O
9%
CaCO₃ → CaO + CO₂
12%
NaOH + HCl → NaCl + H₂O
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The reaction between an acid and a base to form salt and water is called:
Anonymous Quiz
14%
Combination Reaction
8%
Decomposition Reaction
71%
Neutralization Reaction
6%
Redox Reaction
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Which of the following equations represents a redox reaction?
Anonymous Quiz
40%
Zn + CuSO₄ → ZnSO₄ + Cu
15%
CaCO₃ → CaO + CO₂
34%
NaOH + HCl → NaCl + H₂O
10%
2KClO₃ → 2KCl + 3O₂
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In the reaction Zn + CuSO₄ → ZnSO₄ + Cu, which substance is oxidized?
Anonymous Quiz
57%
Zn
22%
Cu
10%
SO₄
10%
ZnSO₄
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Which of the following reactions is an example of a decomposition reaction?
Anonymous Quiz
77%
CaCO₃ → CaO + CO₂
10%
2H₂ + O₂ → 2H₂O
8%
Zn + H₂SO₄ → ZnSO₄ + H₂
5%
NaOH + HCl → NaCl + H₂O
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What is the product of the reaction between magnesium and hydrochloric acid?
Anonymous Quiz
66%
MgCl₂ and H₂
14%
MgCl and H₂O
12%
MgCl₂ and H₂O
8%
MgCl and H₂
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Which of the following represents a neutralization reaction?
Anonymous Quiz
78%
HCl + NaOH → NaCl + H₂O
11%
2H₂ + O₂ → 2H₂O
6%
CaCO₃ → CaO + CO₂
5%
Zn + CuSO₄ → ZnSO₄ + Cu
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Which type of reaction is represented by the equation: 2KClO₃ → 2KCl + 3O₂?
Anonymous Quiz
18%
Combination
70%
Decomposition
8%
Displacement
5%
Double Displacement
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