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Science · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 1 · Q17
(i)$\displaystyle \mathrm{AgNO}_{3}+\mathrm{NaCl} \longrightarrow \mathrm{NaNO}_{3}+\mathrm{AgCl}$(ii)$\displaystyle \mathrm{K}_{2} \mathrm{SO}_{4}+\mathrm{BaCl}_{2} \longrightarrow \mathrm{BaSO}_{4}+2 \mathrm{KCl}$ Which of the following options clearly describes both the reactions?
(i)
$\displaystyle \mathrm{AgNO}_{3}+\mathrm{NaCl} \longrightarrow \mathrm{NaNO}_{3}+\mathrm{AgCl}$
(ii)
$\displaystyle \mathrm{K}_{2} \mathrm{SO}_{4}+\mathrm{BaCl}_{2} \longrightarrow \mathrm{BaSO}_{4}+2 \mathrm{KCl}$ Which of the following options clearly describes both the reactions?
Official answer
From CBSE’s own marking scheme for this paper.
(C)
Both, (i) and (ii) are double displacement reactions and precipitation reactions.
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CBSE Class 10 Science past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.