Which of the following pairs will give displacement reactions ?
Which of the following pairs will give displacement reactions ?
- A
$NaCl$ solution and copper metal
- B
$MgCl_{2}$ solution and aluminium metal
- C
$FeSO_{4}$ solution and silver metal
- D
$AgNO_{3}$ solution and copper metal
Similar Questions
You are given a hammer, a battery, a bulb, wires and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals ?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.
You are given a hammer, a battery, a bulb, wires and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals ?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.
What are alloys ?
What are alloys ?
Samples of four metals $A$, $B$, $C$ and $D$ were taken and added to the following solution one by one. The results obtained have been tabulated as follows.
Metal
Iron $(II)$ sulphate
Cooper $(II)$ sulphate
zinc sulphate
Silver nitrate
$A.$
No reaction
Displacement
$B.$
Displacement
No reaction
$C.$
No reaction
No reaction
No reaction
Displacement
$D.$
No reaction
No reaction
No reaction
No reaction
Use the Table above to answer the following questions about metals $A$, $B$, $C$ and $D$.
$(i)$ Which is the most reactive metal ?
$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate ?
$(iii)$ Arrange the metals $A$, $B$, $C$ and $D$ in the order of decreasing reactivity.
Samples of four metals $A$, $B$, $C$ and $D$ were taken and added to the following solution one by one. The results obtained have been tabulated as follows.
| Metal | Iron $(II)$ sulphate | Cooper $(II)$ sulphate | zinc sulphate | Silver nitrate |
| $A.$ | No reaction | Displacement | ||
| $B.$ | Displacement | No reaction | ||
| $C.$ | No reaction | No reaction | No reaction | Displacement |
| $D.$ | No reaction | No reaction | No reaction | No reaction |
Use the Table above to answer the following questions about metals $A$, $B$, $C$ and $D$.
$(i)$ Which is the most reactive metal ?
$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate ?
$(iii)$ Arrange the metals $A$, $B$, $C$ and $D$ in the order of decreasing reactivity.
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Give reasons : Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.
Give reasons : Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.