Sodium hydrogen carbonate, 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
(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (ii), (iii) and (iv)
(d) (i) and (iv)
Correct Answer: (a) (i) and (ii)
Explanation: The reaction between Sodium hydrogen carbonate and acetic acid leads to the evolution of carbon-dioxide gas. Carbon dioxide turns the lime water milky and extinguishes a burning splinter.
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