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प्रश्न
Give scientific reason.
It takes time for pieces of Shahabad tile to disappear in HCl, but its powder disappears rapidly.
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उत्तर
- The rate of a chemical reaction depends upon the size of the reactant particles taking part in the reaction.
- Smaller the size of the reactant particles, higher is the rate of reaction.
- The size of reactant particles is more in pieces of Shahabad tile as compared to powder of Shahabad tile.
- When HCl is added to pieces of Shahabad tile, the CO2 effervescence is formed slowly. However, when HCl is added to Shahabad powder, the CO2 effervescence is formed at a faster rate.
Hence, it takes time for pieces of Shahabad tile to disappear in HCl, but its powder disappears rapidly.
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संबंधित प्रश्न
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Give an example of a double displacement reaction other than the one given in the following Activity.
•Take about 3 mL of sodium sulphate
solution in a test tube.
• In another test tube, take about 3 mL of
barium chloride solution.
• Mix the two solutions given in the following fig.
• What do you observe?
Write the balanced chemical equation for the following and identify the type of reaction.
\[\ce{Potassium bromide (aq) + Barium iodide (aq) -> Potassium iodide (aq) + Barium bromide (s)}\]
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What type of chemical reaction is represented by the following equation?
\[\ce{PQ + RS -> PS + RQ}\]
What type of reaction is represented by the following equation?
\[\ce{CuSO4 + 2NaOH -> Cu(OH)2 + Na2SO4}\]
What is meant by a double displacement reaction? Explain with the help of one example.
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Name the type of reaction involved.
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Choose and write the correct option.
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The correct option is:
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