Chemical Reactions and Equations

CBSE Class 10 · Science · 31 past questions

6 of 31 · show all

1. Q1 2026

   The gases evolved on heating lead (II) nitrate crystals are…

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2. Q4 2026

   2 g of green coloured crystals of ferrous sulphate are heated in a dry boiling tube. Name the type of…

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3. Q12 2025

   Electrolysis of water is a decomposition reaction. The mass ratio ($M_H : M_O$) of hydrogen and oxygen gases…

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4. Q13 2025

   The products formed when Aluminium and Magnesium are burnt in the presence of air respectively are…

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5. Q14 2025

   The metals obtained from their molten chlorides by the process of electrolytic reduction are…

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6. Q19 2024

   Identify the product 'X' obtained in the following chemical reaction…

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