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Science · 2026 · 1 mark
CBSE 2026 · Region 1 · Set 1 · Q17
(i) AgNO_3+ NaCl → NaNO_3+ AgCl (ii) K_2 SO_4+ BaCl_2 → BaSO_4+2 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
(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 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.