मराठी

Consider the reaction: KBr(aq) + AgNO3⁢(aq) -> KNO3⁢(aq) + AgBr(s) This is an example of:

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प्रश्न

Consider the reaction:

\[\ce{KBr_{(aq)} + AgNO3_{(aq)} -> KNO3_{(aq)} + AgBr_{(s)}}\]

This is an example of:

पर्याय

  • decomposition reaction

  • combination reaction

  • double displacement reaction

  • displacement reaction

MCQ
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उत्तर

Double displacement reaction

Explanation:

In a double displacement reaction, potassium bromide (KBr) and silver nitrate (AgNO3) exchange their constituent ions (K+, Ag+, Br−, and \[\ce{NO^-_3}\]) to form two entirely new compounds. Because an insoluble solid, silver bromide (AgBr), is produced, it is also specifically classified as a precipitation reaction.

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पाठ 1: Chemical Reactions and Equations - Exercise 2 [पृष्ठ ६४]

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लखमीर सिंह Chemistry Part 2 [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 2 | Q 57. | पृष्ठ ६४

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संबंधित प्रश्‍न

What is the difference between displacement and double displacement reactions? Write equations for these reactions.


What is observed when a solution of sodium sulphate is added to a solution of barium chloride taken in a test tube? Write equation for the chemical reaction involved and name the type of reaction in this case.


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


What type of chemical reaction is represented by the following equation?

\[\ce{PQ + RS -> PS + RQ}\]


A metal X forms a water soluble salt XNO3. When an aqueous solution of XNO3 is added to common salt solution, then a white precipitate of compound Y is formed along with sodium nitrate solution. Metal X is said to be the best conductor of electricity and it does not evolve hydrogen when put in dilute hydrohloric acid.

  1. What is metal X?
  2. What is salt XNO3?
  3. Name the compound Y.
  4. Write the chemical equation of the reaction which takes place on reacting XNO3 solution and common salt solution giving the physical states of all the reactants and products.
  5. What type of chemical reaction is illustrated by the above equation?

Explain the following type of chemical reaction, giving two examples for it:

Double displacement reaction


(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.


Study the following chemical reaction and answer the questions given below:

\[\ce{AgNO3_{(aq)} + NaCl_{(aq)} -> \underset{(Precipitate)}{AgCl_{(s)}}↓ + NaNO3_{(aq)}}\]

  1. Identify and write the type of chemical reaction.
  2. Write the definition of the above type of chemical reaction.
  3. Write the names of the reactants and products of 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.


Differentiate between displacement reaction and a neutralization reaction.


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?


A chemical reaction in which exchange of ions occurs between the reactants is known as ______.


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.


Write the method of preparation of Ca(OH)2. What happens when CO2 is passed through it? Write balanced chemical equation for the reaction involved.


Give scientific reason.

While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.


Give an example of a double displacement reaction.


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