NCERT MCQs on Chemical Reactions
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The PDF file contains MCQ (Multiple Choice Questions) related to Chemical Reactions and Equations. Chemical Reactions and Equations is the Chapter 1 of Class 10 Science (Chemistry).
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NCERT MCQs on Chemical Reactions
- 1. 8/16/2021 MCQ on Chemical Reactions and Equations - Class 10 Science - Chemistry Chapter 1 (NCERT) - Part 1 - NCERT SOLUTIONS https://ncertsolutions.website/mcq-on-chemical-reactions-and-equations-part-1/ 2/8 The correct answers are: The reactions in which heat is released along with the formation of products are called Exothermic chemical reactions Decomposition reaction Displacement reaction None of the above Burning of natural gas is An endothermic reaction An exothermic reaction Combination reaction None of the above In a chemical reaction, the products are written on the Right hand side Left hand side Middle None of the above The substances that undergoes chemical change in a reaction are called Reactants Products Oxidants None of the above In a chemical equation, the reactants are written on the Right hand side
- 2. 8/16/2021 MCQ on Chemical Reactions and Equations - Class 10 Science - Chemistry Chapter 1 (NCERT) - Part 1 - NCERT SOLUTIONS https://ncertsolutions.website/mcq-on-chemical-reactions-and-equations-part-1/ 3/8 Left hand side Middle None of the above The following chemical equation is a Balanced chemical equation Unbalanced chemical equation Cannot be determined None of the above Which of the following statement is true for balanced chemical equations The total mass of the elements present in the products may not be equal to the total mass of the elements present in the reactants The total mass of the elements present in the products must be greater than the total mass of the elements present in the reactants The total mass of the elements present in the products must be equal to the total mass of the elements present in the reactants None of the above The new substances formed during a reaction are called Reactants Products Oxidants None of the above Zn + H2SO4 → ZnSO4 + H2
- 3. 8/16/2021 MCQ on Chemical Reactions and Equations - Class 10 Science - Chemistry Chapter 1 (NCERT) - Part 1 - NCERT SOLUTIONS https://ncertsolutions.website/mcq-on-chemical-reactions-and-equations-part-1/ 4/8 In an unbalanced chemical equation, The number of atoms in the LHS and RHS of the arrow is unequal The number of atoms in the LHS and RHS of the arrow is equal The number of atoms in the LHS is greater than the number of atoms in the RHS The number of atoms in the RHS is greater than the number of atoms in the LHS The following chemical equation is a Balanced chemical equation Unbalanced chemical equation Cannot be determined None of the above The reactions in which a single product is formed from two or more reactants are called, Decomposition reaction Displacement reaction Combination reaction None of the above In a balanced chemical equation, The number of atoms in the LHS and RHS of the arrow is unequal The number of atoms in the LHS and RHS of the arrow is equal The number of atoms in the LHS is greater than the number of atoms in the RHS The number of atoms in the RHS is greater than the number of atoms in the LHS F e + H2O → F e3O4 + H2
- 4. 8/16/2021 MCQ on Chemical Reactions and Equations - Class 10 Science - Chemistry Chapter 1 (NCERT) - Part 1 - NCERT SOLUTIONS https://ncertsolutions.website/mcq-on-chemical-reactions-and-equations-part-1/ 5/8 Skeletal chemical equations are also called Balanced chemical equations Unbalanced chemical equations Both balanced and unbalanced chemical equations None of the above The reactions in which a single reactant breaks down to give simpler products are known as Combination reaction Displacement reaction Decomposition reaction None of the above In a skeletal chemical equation The mass of atoms is same on both sides of the equation The mass of atoms is not same on both sides of the equation The mass of atoms in the LHS is greater than the number of atoms in the RHS None of the above The decomposition of vegetable matter into compost is An endothermic reaction An exothermic reaction Combination reaction None of the above Formation of water from and is a Decomposition reaction Displacement reaction H2(g) O2(g)
- 5. 8/16/2021 MCQ on Chemical Reactions and Equations - Class 10 Science - Chemistry Chapter 1 (NCERT) - Part 1 - NCERT SOLUTIONS https://ncertsolutions.website/mcq-on-chemical-reactions-and-equations-part-1/ 6/8 Combination reaction None of the above Which of the following observations helps us to determine whether a chemical reaction has taken place Change in state Change in colour Evolution of gas All of the above Respiration is a Displacement process Endothermic process Exothermic process None of the above Burning of coal is a Decomposition reaction Displacement reaction Combination reaction None of the above Related Topics MCQ on Chemical Reactions and Equations – Class 10 Science – Chemistry Chapter 1 (NCERT) – Part 1 MCQ on Chemical Reactions and Equations – Class 10 Science – Chemistry Chapter 1 (NCERT) – Part 2 MCQ on Light (Reflection and Refraction) – Image Formation By Spherical Lens – Class 10 Science