Advertisements
Advertisements
प्रश्न
Solutions of copper sulphate, iron sulphate and zinc sulphate are prepared and marked I, II and III respectively. Few pieces of aluminium are added to each solutions. After some time a change will be observe in
(A) I and II
(B) II and III
(C) III and I
(D) All the three
Advertisements
उत्तर
Changes will be observed in all the three solutions. This is because aluminium is more reactive than copper, zinc and iron. Hence, when added to solutions of copper sulphate, zinc sulphate and iron sulphate, it displaces copper, zinc and iron from the solution which then precipitate at the bottom.
The Correct Answer is D
APPEARS IN
संबंधित प्रश्न
What type of chemical reaction is represented by the following equation?
PQ + RS → PS + RQ
(a) What happens when an aqueous solution of sodium sulphate reacts with an aqueous solution of barium chloride?
(b) Write the balanced chemical equation for the reaction which takes place.
(c) State the physical conditions of reactants in which the reaction will not take place.
(d) Name the type of chemical reaction which occurs.
(e) Give one example of another reaction which is of the same type as the above reaction.
If sodium chloride is added to the silver nitrate solution:
a. which precipitate is formed?
b. name the type of reaction.
c. write the chemical equation.
Differentiate between displacement reaction and a neutralization reaction.
Which of the following represents a precipitation reaction?
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
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 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.
