Chemical Reactions and Equations

CBSE Class 10 · Science · 31 past questions

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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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