Acids, Bases and Salts

CBSE Class 10 · Science · 29 past questions

11 of 29 · show all

1. Q3 2026

   To a small amount of copper oxide in a beaker, when we add dilute hydrochloric acid slowly with stirring, the…

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2. Q5 2026

   When zinc reacts with NaOH, the product formed is…

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3. Q6 2026

   A metal carbonate reacts with a solution X which forms a salt, water and a gas Y. What are X and Y ?

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4. Q12 2025

   The warning sign shown in the given figure must invariably be displayed/pasted on the containers which… (with a figure)

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5. Q15 2025

   For Questions number 17 to 20, two statements are given — one labelled as Assertion (A) and the other…

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6. Q16 2025

   Consider the following reactions…

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7. Q18 2024

   The oxide which can react with HCl as well as KOH to give corresponding salt and water is

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8. Q22 2024

   For Q. Nos. 17 to 20, two statements are given – One labelled as Assertion (A) and the other labelled as…

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9. Q23 2023

   In the experimental setup given below, it is observed that on passing the gas produced in the reaction in the… (with a figure)

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10. Q25 2023

    When Sodium bicarbonate reacts with dilute hydrochloric acid, the gas evolved is…

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11. Q27 2023

    Sodium hydroxide is termed an alkali while Ferric hydroxide is not because…

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