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प्रश्न
Differentiate between displacement reaction and a neutralization reaction.
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उत्तर
- Displacement reaction: “A chemical reaction in which an element displaces the element from a solution of its compound.”
In an activity series of metals, an element placed higher displaces the element placed below it.
Here Zn is placed above Cu inactivity series of metal and is more reactive than copper has displaced Cu from copper sulphate. - Neutralization reaction: “A reaction between an acid and a base to form salt and water is called a neutralization reaction.”
\[\ce{NaOH + HCl->NaCl + H2O}\]
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संबंधित 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?
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.
What type of chemical reaction is represented by the following equation?
\[\ce{PQ + RS -> PS + RQ}\]
- 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.
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?
(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
Explain the types of double displacement reactions with examples.
Balance the following chemical equation and identify the type of chemical reaction.
`"TiCl"_4("l") + "Mg"("s") -> "Ti"("s") + "MgCl"_2("s")`
Identify the product which represents the solid state in the above reaction.
