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Acids, Bases and Salts — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryAcids, Bases and Salts1 Mark
MCQ
Which gas is evolved when $HNO _3$ react with sodium bicarbonate?
  • A
    $H _2$
  • ✓
    $CO _2$
  • C
    $SO _2$
  • D
    $H _2 S$
✓

Answer

Correct option: B.
$CO _2$
(b) $CO _2$
Explanation : When nitric acid $\left( HNO _3\right)$ reacts with sodium bicarbonate $\left( NaHCO _3\right)$, it liberates carbon dioxide $\left( CO _2\right)$ gas. The reaction can be represented as follows :
$HNO_3+NaHCO_3 \rightarrow NaNO_3+H_2 O+CO_2 \uparrow$
Nitric acid Sodium Sodium Water Carbon
hydrogen nitrate dioxide
carbonate

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