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प्रश्न
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?
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उत्तर
2KBr (aq) + BaI2 (aq) → 2KI (aq) + BaBr2 (aq)
संबंधित प्रश्न
When the substance ‘A’ is added to a solution of BaSO4, a yellow precipitate is formed.
- What do you think substance A is likely to be?
- Name the precipitate.
- Which type of reaction is this?
What is the difference between displacement and double displacement reactions? Write equations for these reactions.
What do you mean by a precipitation reaction? Explain giving an example.
- What happens when an aqueous solution of sodium sulphate reacts with an aqueous solution of barium chloride?
- Write the balanced chemical equation for the reaction which takes place.
- State the physical conditions of reactants in which the reaction will not take place.
- Name the type of chemical reaction which occurs.
- Give one example of another reaction which is of the same type as the above reaction.
Consider the reaction:
\[\ce{KBr_{(aq)} + AgNO3_{(aq)} -> KNO3_{(aq)} + AgBr_{(s)}}\]
This is an example of:
Fill in the blank
In the type of reaction called ....................................., ions two compounds exchange their positive and negative radicals ions respectively.
The aqueous solutions of copper sulphate and zinc sulphate appear
(A) blue and green respectively
(B) green and colourless respectively
(C) blue and brown respectively
(D) blue and colourless respectively.
(i) What is observed when a solution of potassium iodide is added to a solution of lead nitrate taken in a test tube?
(ii) What type of reaction is this?
(iii) Write a balanced chemical equation to represent the above reaction.
Identify the type of reaction taking place in the following case and write the balanced chemical equation for the reaction.
Potassium iodide reacts with lead nitrate to produce potassium nitrate and lead iodide.
When a potassium iodide solution is added to a solution of lead (II) nitrate in a test tube, a precipitate is formed.
List two types of reactions in which this reaction can be placed.
The following reaction is an example of:
\[\ce{4NH3_{(g)} + 5O2_{(g)} -> 4NO_{(g)} + 6H2O_{(g)}}\]
(i) displacement reaction
(ii) combination reaction
(iii) redox reaction
(iv) neutralisation reaction
Which option denotes a double displacement reaction?
Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of reaction involved?
(i) Displacement reaction
(ii) Precipitation reaction
(iii) Combination reaction
(iv) Double displacement reaction
Balance the following chemical equation and identify the type of chemical reaction.
`"TiCl"_4("l") + "Mg"("s") -> "Ti"("s") + "MgCl"_2("s")`
Add potassium chromate (K2CrO4) into the solution of barium sulphate (BaSO4).
- What was the colour of the precipitate formed? Also, write the name of the precipitate.
- Write down the balanced equation for this reaction.
- Will you call this reaction a displacement reaction or a double displacement reaction? Why?
Write balanced chemical equation for the following word equation.
Lead nitrate + Potassium iodide → Lead iodide + Potassium nitrate
Is this a double displacement reaction? Justify your answer. Name the compound precipitated and write the ions present in it.
