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Chemical Reactions and Equations for Class 10

3 Questions

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Chemical Reactions and Equations for Class 10

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Questions and Answers

In the reaction: CH4 + 2O2 → CO2 + 2H2O, how many moles of oxygen are required to completely react with one mole of methane?

1.5 moles

3 moles

1 mole

2 moles (correct)

What is the balanced chemical equation for the reaction between iron and oxygen?

3Fe + 2O2 → Fe3O4

2Fe + O2 → Fe2O3

Fe + O2 → FeO

4Fe + 3O2 → 2Fe2O3 (correct)

What type of reaction is represented by the equation: 2H2 + O2 → 2H2O?

Single displacement

Combustion

Synthesis (correct)

Decomposition

Study Notes

In the reaction: CH4 + 2O2 → CO2 + 2H2O, how many moles of oxygen are required to completely react with one mole of methane? What is the balanced chemical equation for the reaction between iron and oxygen? What type of reaction is represented by the equation: 2H2 + O2 → 2H2O?

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Description

Test your knowledge of chemical reactions and equations as per the Class 10 curriculum. This quiz covers topics such as types of chemical reactions, balancing equations, and predicting products of reactions.