Chemical Reactions and Equations

CBSE Class 10 · Science · 31 past questions

5 of 31 · show all

1. Q6 2026

   A student notices that her silver jewellery turned dull and had a grey-black coating over it after wearing…

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2. Q8 Sample paper 2026-27

   A food label is given below. E304 and E307b are added to the flavoured biscuits.… (with a figure)

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3. Q9 Sample paper 2026-27

   Attempt either option A or B.…

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4. Q18 2024

   Identify the correct statement about the following reaction…

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5. Q25 2024

   MnO$_2$ + 4HCl $\to$ MnCl$_2$ + 2H$_2$O + Cl$_2$…

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