Chemical Reactions and Equations

CBSE Class 10 · Science · 31 past questions

7 of 31 · show all

1. Q3 2026

   In the following equation…

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2. Q10 2025

   The correct balanced chemical equation showing exothermic reaction in which natural gas burns in air is…

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3. Q11 2025

   Consider the following chemical equation…

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4. Q20 2024

   Consider the following Chemical equation…

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5. Q23 2024

   When 2 mL of sodium hydroxide solution is added to few pieces of granulated zinc in a test tube and then…

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6. Q27 2023

   When aqueous solutions of potassium iodide and lead nitrate are mixed, an insoluble substance separates out.…

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7. Q31 2023

   In order to balance the following chemical equation, the values of the coefficients x and y respectively are…

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