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Science · 2026 · 1 mark
CBSE 2026 · Region 5 · Set 1 · Q23
Which gas is evolved when magnesium metal reacts with very dilute HNO_3?
Which gas is evolved when magnesium metal reacts with very dilute $\displaystyle \mathrm{HNO}_{3}$ ?
Official answer
(C)
Hydrogen
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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.