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Chemical Reactions and Equations.pdf
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Chemical reaction and equation most important questions β€οΈ
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2025-26 sample paper and marking scheme β€οΈ
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A reaction where a single compound breaks down into two or more products is?
Anonymous Quiz
15%
Combination
74%
Decomposition
5%
Displacement
5%
Double displacement
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The reaction 2Na + Cl2 β 2NaCl is an example of?
Anonymous Quiz
10%
Decomposition
83%
Combination
5%
Displacement
2%
Oxidation
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In double displacement reactions, what happens?
Anonymous Quiz
19%
Electrons are transferred
64%
Ions are exchanged
6%
Heat is absorbed
11%
Precipitate is formed always
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Which of the following is an endothermic reaction?
Anonymous Quiz
25%
Combustion
43%
Photosynthesis
24%
Respiration
8%
Neutralization
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The reaction Zn + CuSO4 β ZnSO4 + Cu is?
Anonymous Quiz
6%
Combination
9%
Decomposition
73%
Displacement
12%
Double displacement
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Balancing chemical equations follows the law of?
Anonymous Quiz
81%
Conservation of mass
14%
Constant proportions
3%
Multiple proportions
2%
Avogadro's law
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In the reaction 2H2O β 2H2 + O2, it is?
Anonymous Quiz
16%
Combination
70%
Decomposition
7%
Displacement
7%
Redox
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Reducing agent is the one that?
Anonymous Quiz
40%
Gains electrons
49%
Loses electrons
8%
Gains protons
3%
Loses protons
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The reaction between acid and base is?
Anonymous Quiz
84%
Neutralization
10%
Oxidation
3%
Reduction
3%
Precipitation
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NCERT NOTES + MOST IMPORTANT QUESTIONS
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Class 10 Science Chapter 1 : Chemical Reactions and Equations NCERT Notes With Important Questions - Acadpills
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