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Question
Sodium hydrogencarbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
- It turns lime water milky
- It extinguishes a burning splinter
- It dissolves in a solution of sodium hydroxide
- It has a pungent odour
Options
(i) and (ii)
(i), (ii) and (iii)
(ii), (iii) and (iv)
(i) and (iv)
Solution
(i), (ii) and (iii)
Explanation -
The gas evolved is carbon dioxide (CO2). The statements (i), (ii) and (iii) are true about the gas.
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