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P-1 Chemical reactions and equations — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Chemical reactions and equations1 Mark
MCQ
Whichamong the following is double displacement reaction.
  • A
    $Pb + CuCl _2 \rightarrow PbCl _2+ Cu$
  • ✓
    $Na _2 SO _4+ BaCl _2 \rightarrow BaSO _4 \downarrow+2 NaCl$
  • C
    $C + O _2 \rightarrow CO _2$
  • D
    $CH _4+2 O _2 \rightarrow CO _2+2 H _2 O$
✓

Answer

Correct option: B.
$Na _2 SO _4+ BaCl _2 \rightarrow BaSO _4 \downarrow+2 NaCl$
$Na _2 SO _4+ BaCl _2 \rightarrow BaSO _4 \downarrow+2 NaCl$

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