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Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Multiple Choice QuestionsQuestion 10
Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Multiple Choice Questions
Question. 10
Sodium hydrogencarbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
(i) It turns lime water milky
(ii) It extinguishes a burning splinter
(iii) It dissolves in a solution of sodium hydroxide
(iv) It has a pungent odour
(a)
(i) and (ii)
(b)
(i), (ii) and (iii)
(c)
(ii), (iii) and (iv)
(d)
(i) and (iv)
Detailed Answer with Explanation:
Steps: Reaction produces CO₂. CO₂ turns lime water milky (i), extinguishes burning splinter (ii), and dissolves/reacts with NaOH forming carbonate/bicarbonate (iii). It has no pungent odour (iv false).