Chemical Reactions and Equations

CBSE Class 10 · Science · 31 past questions

7 of 31 · show all

1. Q2 2026

   Which of the following is an example of a displacement reaction ?

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2. Q17 2024

   Select from the following a process in which a combination reaction is involved…

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3. Q21 2024

   Which one of the following reactions is different from the remaining three ?

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4. Q22 2024

   When magnesium ribbon is burnt in air, an ash of white colour is produced. Write chemical equation for the…

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5. Q24 2024

   Select from the following a decomposition reaction in which source of energy for decomposition is light…

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6. Q26 2024

   Name the type of chemical reaction in which calcium oxide reacts with water. Justify your answer by giving…

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7. Q28 2023

   A metal ribbon 'X' burns in oxygen with a dazzling white flame forming a white ash 'Y'. The correct…

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