Advertisements
Advertisements
Question
A single displacement reaction is represented by X(s) + 2HCl(aq) → XCl2(aq) + H2(g). Which of the following(s) could be X.
(i) Zn
(ii) Ag
(iii) Cu
(iv) Mg.
Choose the best pair.
Options
i and ii
ii and iii
iii and iv
i and iv
Advertisements
Solution
i and iv
APPEARS IN
RELATED QUESTIONS
State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.
What type of chemical reaction is represented by the following equation?
\[\ce{A + BC -> AC + B}\]
What type of reaction is represented by the following equation?
\[\ce{Mg + CuSO4 -> MgSO4 + Cu}\]
What is meant by a displacement reaction? Explain with the help of one example.
What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.
What happens when a zinc strip is dipped into a copper sulphate solution?
- Write the equation for the reaction that takes place.
- Name the type of reaction involved.
Classify the following reaction into –
- Direct combination
- Decomposition
- Displacement
- Double decomposition
The reaction is – Zinc reacts with copper [II] sulphate to give zinc sulphate and copper.
Match the following
Identify the types of reactions.
| REACTION | TYPE |
| NH4OH(aq) + CH3COOH(aq) → CH3COONH4(aq) + H2O(l) | Single Displacement |
| Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) | Combustion |
| \[\ce{ZnCO3_{(s)} + ->[Heat]ZnO_{(s)} + CO2_{(g)}}\] | Neutralization |
| C2H4(g) + 4O2(g) → 2CO2(g) + 2H2 O(g) + Heat | Thermal decomposition |
Complete the following chemical reaction:
\[\ce{CuSO4 (aq) + Pb (s) -> \underline{}\underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}\underline{}}\]
Name the chemical reaction type.
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.
