Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
The balanced chemical equation for the reaction between lead nitrate and potassium iodide is:
\[\ce{Pb(NO3)2(aq) + 2KI(aq)->PbI2(s) + 2KNO3(aq)}\]
This reaction is indeed a double displacement reaction, as it involves the exchange of ions between the two reacting compounds. In a double displacement reaction, the anions and cations of two different reactants switch places, forming two new compounds. Here, the nitrate ions (NO3−) from lead nitrate switch places with the iodide ions (I−) from potassium iodide, resulting in the formation of lead iodide (PbI2) and potassium nitrate (KNO3). The compound that precipitates (forms a solid) in this reaction is lead iodide (PbI2), and the ions present in it are lead ions (Pb2+) and iodide ions (I−).
APPEARS IN
संबंधित प्रश्न
Complete the following reaction, balance it and write the name of the products CuO + HCI →_________ + _________
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.
What happens when silver nitrate solution is added to sodium chloride solution?
Name the type of reaction involved.
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.
- What could the salt XSO4 be?
- What is the colour of salt XSO4?
- Name the black precipitate XS.
- 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.
- What type of chemical reaction takes place in this case?
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.
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 of the following represents a precipitation reaction?
Balance the following chemical equation and identify the type of chemical reaction.
`"TiCl"_4("l") + "Mg"("s") -> "Ti"("s") + "MgCl"_2("s")`
