Question

Ethanoic acid was added to washing soda solution and the gas evolved was tested with a burning splinter. Which of the following four observations is correct? (A) The gas burns with a pop sound and the flame gets extinguished. (B) The gas does not burn but the splinter burns with a pop sound. (C) The flame extinguishes and the gas does not burn. (D) The gas burns with a blue flame and the splinter burns brightly.

Answer 1

Explanation:

(C) The flame extinguishes and the gas does not burn.

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Answer 2

Dear Student,

◆ Answer -

(C) The flame extinguishes and the gas does not burn

● Explanation -

When ethanoic acid is treated with washing soda, sodium ethanoate is formed evolving carbon dioxide gas.

CH3COOH + NaHCO3 → CH3COONa + H2O + CO2

As CO2 gas doesn't burn in air, it will extinguish the flame.

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