CBSE Chemistry Question on Sodium Hydrogen Carbonate and Ethanoic Acid Reaction
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Questions and Answers

What is the main observation a student should note when adding powdered sodium hydrogen carbonate to ethanoic acid?

  • Increase in temperature of the mixture
  • Change in color to yellow
  • Effervescence of a colorless and odorless gas (correct)
  • Formation of a white precipitate

    • What is the correct chemical equation for the reaction between sodium hydrogen carbonate and ethanoic acid?

  • $CH_3COOH + NaHCO_3 \rightarrow CH_3COOHNa + CO_2 + H_2O$
  • $CH_3COOH + NaHCO_3 \rightarrow CH_3COONa + CO_2 + H_2O$ (correct)
  • $CH_3COOH + NaHCO_3 \rightarrow NaCOOH + CO_2 + H_2O$
  • $CH_3COOH + NaHCO_3 \rightarrow CH_3COO + CO_2 + H_2O$

    • What would happen if a student uses hydrochloric acid instead of ethanoic acid in the reaction with sodium hydrogen carbonate?

  • No reaction will occur
  • Formation of a foul-smelling gas
  • Release of a green-colored gas (correct)
  • Production of a pink-colored solution

    • If a student mistakenly uses baking powder instead of sodium hydrogen carbonate, what would be the likely outcome?

    <p>No visible reaction</p> Signup and view all the answers

    What effect would decreasing the amount of powdered sodium hydrogen carbonate have on the reaction with ethanoic acid?

    <p>Increase in pH of the solution</p> Signup and view all the answers

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