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What type of reaction is represented by the following equation? CuSO4 + 2NaOH -> Cu⁡(OH)⁢2 + Na2⁢SO4

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Question

What type of reaction is represented by the following equation?

\[\ce{CuSO4 + 2NaOH -> Cu(OH)2 + Na2SO4}\]

One Word/Term Answer
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Solution

Double displacement reaction

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Chapter 1: Chemical Reactions and Equations - Exercise 2 [Page 61]

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Lakhmir Singh Chemistry Part 2 [English] Class 10
Chapter 1 Chemical Reactions and Equations
Exercise 2 | Q 20. (e) | Page 61

RELATED QUESTIONS

When the substance ‘A’ is added to a solution of BaSO4, a yellow precipitate is formed.

  1. What do you think substance A is likely to be?
  2. Name the precipitate.
  3. Which type of reaction is this?

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. 

\[\ce{Potassium bromide (aq) + Barium iodide (aq) -> Potassium iodide (aq) + Barium bromide (s)}\]


What do you mean by a precipitation reaction? Explain giving an example.


Give two characteristics of the chemical reaction which occurs on adding potassium iodide solution to lead nitrate solution.


What is meant by a double displacement reaction? Explain with the help of one example.


  1. What happens when an aqueous solution of sodium sulphate reacts with an aqueous solution of barium chloride?
  2. Write the balanced chemical equation for the reaction which takes place.
  3. State the physical conditions of reactants in which the reaction will not take place.
  4. Name the type of chemical reaction which occurs.
  5. Give one example of another reaction which is of the same type as the above reaction.

A red-brown metal X forms a salt XSO4. When hydrogen sulphide gas is passed through an aqueous solution of XSO4, then a black precipitate of XS is formed alongwith sulphuric acid solution.

  1. What could the salt XSO4 be?
  2. What is the colour of salt XSO4?
  3. Name the black precipitate XS.
  4. By using the formula of the salt obtained in (a) above, write an equation of the reaction which takes place when hydrogen sulphide gas is passed through its aqueous solution.
  5. What type of chemical reaction takes place in this case?

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.


Choose and write the correct option.

What is the type of the following reaction?

BaCl2 + ZnSO4 →  BaSO4 + ZnCl2


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.


Which among the following is (are) double displacement reaction(s)?

(i) \[\ce{Pb + CuCl -> PbCl2 + Cu}\]

(ii) \[\ce{Na2SO4 + BaCl2 -> BaSO4 + 2NaCl}\]

(iii) \[\ce{C + O2 -> CO2}\]

(iv) \[\ce{CH4 + 2O2 -> CO2 + 2H2O}\]


In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?


In a double displacement reaction ______.


Give an example of a double displacement reaction.


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