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Class 10 · Science · Chemistry

Chemical Reactions and EquationsPractice Questions & MCQs

Practice Chemical Reactions and Equations questions for Class 10 Science - important MCQs and practice questions with answers and step-by-step solutions. Solve the sample Chemical Reactions and Equations questions below, then get the full set free on the RankByte app.

Topics covered

Writing and Balancing Chemical EquationsCombination and Decomposition ReactionsDisplacement and Double Displacement ReactionsOxidation and Reduction (Redox Reactions)Effects of Oxidation in Daily Life (Corrosion, Rancidity)Balancing, types, redox, stoichiometry

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Focused MCQ quizzes for each topic.

Balancing, types, redox, stoichiometryCombination and Decomposition ReactionsDisplacement and Double Displacement ReactionsEffects of Oxidation in Daily Life (Corrosion, Rancidity)Oxidation and Reduction (Redox Reactions)Writing and Balancing Chemical Equations

Chemical Reactions and EquationsQuiz - Solve & Score

A few sample questions with instant answers and solutions - the full set is in the app.

  1. Q1. Which of the following prevents rusting by sacrificial protection (NCERT)?

    • A.painting the surface
    • B.keeping it in dry air
    • C.connecting a more reactive metal like zinc or magnesium
    • D.greasing the surface

    Answer: C. connecting a more reactive metal like zinc or magnesium

  2. Q2. Which is NOT a method to prevent rusting of iron?

    • A.Storing iron in moist air
    • B.Galvanising with zinc
    • C.Applying grease or oil
    • D.Painting the surface

    Answer: A. Storing iron in moist air

    Quick parse - a typical chemistry numerical. We are after the quantity the stem asks for. Tool of choice - hence the answer = Storing iron in moist air. Rearrange it for the unknown before substituting. Common-sense check: corrosion of iron: 4Fe + 3O2 + 2xH2O -> 2Fe2O3.xH2O (hydrated ferric oxide). Lock in option A) Storing iron in moist air. Trap-watch: option B) 'Galvanising with zinc' fails since Zinc gives sacrificial protection; option C) 'Applying grease or oil' is wrong because Oil forms a protective barrier.

  3. Q3. Which everyday practice does NOT slow rancidity?

    • A.Frying food repeatedly in the same exposed oil
    • B.Vacuum packing
    • C.Adding BHA/BHT antioxidants
    • D.Refrigerating fried snacks

    Answer: A. Frying food repeatedly in the same exposed oil

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Chemical Reactions and Equations - Frequently asked questions

Where can I find Chemical Reactions and Equations practice questions for Class 10 Science?

RankByte has chapter-wise and topic-wise Chemical Reactions and Equations practice questions and MCQs for Class 10 Science, each with the correct answer and a step-by-step solution - free to start.

Are these Chemical Reactions and Equations questions important for the exam?

Yes. These Chemical Reactions and Equations important questions follow the Science exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.

Do the Chemical Reactions and Equations questions come with answers and solutions?

Every Chemical Reactions and Equations question on RankByte comes with the correct answer and a full step-by-step solution, so you learn from each one instead of just guessing.

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