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Science · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q1
When $\displaystyle 2$ mL of sodium hydroxide solution is added to few pieces of granulated zinc in a test tube and then warmed, the reaction that occurs can be written in the form of a balanced chemical equation as :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 2 \mathrm{NaOH}+\mathrm{Zn} \rightarrow \mathrm{Na}_{2} \mathrm{ZnO}_{2}+\mathrm{H}_{2}$
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CBSE Class 10 Science past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.