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Science · 2026 · 1 mark
CBSE 2026 · Region 2 · Set 1 · Q23
A student notices that her silver jewellery turned dull and had a grey-black coating over it after wearing for a few months. What results in the…
A student notices that her silver jewellery turned dull and had a grey-black coating over it after wearing for a few months. What results in the change in colour of the silver metal ?
Official answer
(B)
The jewellery comes in contact with air, moisture and acids and corrodes.
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.