Advertisements
Advertisements
प्रश्न
Choose the correct option from given alternative:
In a double displacement reaction such as the reaction between sodium sulphate solution and barium chloride solution:
(A) exchange of atoms takes place
(B) exchange of ions takes place
(C) a precipitate is produced
(D) an insoluble salt is produced
पर्याय
(B) and (D)
(A) and (C)
only (B)
(B), (C) and (D)
उत्तर
\[\ce{\underset{\text{Sodium sulphate}}{Na2SO4(aq)}+\underset{\text{Barium Chloride}}{BaCl2(aq)}->\underset{\text{Barium Sulphate}}{BaSO4(s)}+\underset{\text{Sodium Chloride}}{2NaCl(aq)}}\]
The white precipitate of BaSO4 is formed by the reaction of `"SO"_4^(2-)` and Ba2+.
Hence, the correct answer is the (B), (C), and (D).
APPEARS IN
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 the difference between displacement and double displacement reactions? Write equations for these reactions.
Give scientific reason.
It takes time for pieces of Shahabad tile to disappear in HCl, but its powder disappears rapidly.
Study the following chemical reaction and answer the questions given below:
\[\ce{AgNO3_{(aq)} + NaCl_{(aq)} -> \underset{(Precipitate)}{AgCl_{(s)}}↓ + NaNO3_{(aq)}}\]
- Identify and write the type of chemical reaction.
- Write the definition of the above type of chemical reaction.
- Write the names of the reactants and products of the above reaction.
Choose the correct option from given alternative:
When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained and the sulphuric acid so formed remains in the solution. The reaction is an example of a:
Classify the following reaction into –
- Direct combination
- Decomposition
- Displacement
- Double decomposition
The reaction is – Zinc sulphate reacts with ammonium hydroxide to give ammonium sulphate and zinc hydroxide.
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) \[\ce{CH4 + 2O2 -> CO2 + 2H2O}\]
Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of reaction involved?
(i) Displacement reaction
(ii) Precipitation reaction
(iii) Combination reaction
(iv) Double displacement reaction
A chemical reaction in which exchange of ions occurs between the reactants is known as ______.
Give an example of a double displacement reaction.
