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Maharashtra State BoardSSC (English Medium) 10th Standard

Which gas does come out as effervescence in the big test tube? What is the colour change in the lime water present in the small test tube? Write the related reaction. - Science and Technology 1

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Question

The reaction between acetic acid and sodium carbonate is shown in the following figure.

Answer the questions with the help of a diagram.

  1. Which gas does come out as effervescence in the big test tube?
  2. What is the colour change in the lime water present in the small test tube?
  3. Write the related reaction.
Short/Brief Note
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Solution

  1. Carbon dioxide gas.
  2. Lime water turns milky.
  3. \[\ce{2CH3COOH (aq) + Na2CO3 (g) -> CH3COONa (aq) + H2O (l) + CO2 (g)}\]
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2025-2026 (March) Model set 3 by shaalaa.com

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Observe the diagram given below and answer the questions:

  1. Name the reactants in this reaction.
  2. Which gas comes out as effervescence in the bigger test tube?
  3. What is the colour change in the lime water?
  4. In the above experiment instead of sodium carbonate which chemical can be used to get same products?
  5. Write the use of acetic acid.

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