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Science · 2023 · 2 marks
CBSE 2023 · Region 6 · Set 1 · Q21
State whether the given chemical reaction is a redox reaction or not. Justify your answer. MnO_2+4 HCl → MnCl_2+2 H_2 O + Cl_2
State whether the given chemical reaction is a redox reaction or not. Justify your answer. \[\mathrm{MnO}_{2}+4 \mathrm{HCl} \longrightarrow \mathrm{MnCl}_{2}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2} \]
Marking-scheme solution
Yes
HCl is oxidised to \(\displaystyle \mathrm{Cl}_{2} \mathrm{MnO}_{2}\) is reduced to \(\displaystyle \mathrm{MnCl}_{2}\)
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CBSE Class 10 Science past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.