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Question
When sodium hydrogen carbonate is added to ethanoic acid, a gas evolves. Consider the following statements about the gas evolved.
- It turns lime water milky.
- It is evolved with brisk effervescence.
- It has a smell of burning sulfur.
- It is also a by-product of respiration.
Options
(A) and (B) only
(B) and (D) only
(A), (C) and (D)
(A), (B) and (D)
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Solution
(A), (B) and (D)
Explanation:
The gas evolved is carbon dioxide with brisk effervescence. It turns lime water milky. It is also a by-product of respiration.
\[\ce{CH3COOH + NaHCO3 -> CH3COONa + H2O + CO2}\]
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